text: // Copyright (c) 2013 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #include "chrome/browser/extensions/extension_service.h"
  
  #include <stddef.h>
  #include <stdint.h>
  
  #include <algorithm>
  #include <map>
  #include <memory>
  #include <set>
  #include <string>
  #include <utility>
  #include <vector>
  
  #include "base/at_exit.h"
  #include "base/bind.h"
  #include "base/command_line.h"
  #include "base/files/file_enumerator.h"
  #include "base/files/file_util.h"
  #include "base/files/scoped_temp_dir.h"
  #include "base/json/json_file_value_serializer.h"
  #include "base/json/json_reader.h"
  #include "base/json/json_string_value_serializer.h"
  #include "base/location.h"
  #include "base/macros.h"
  #include "base/memory/ptr_util.h"
  #include "base/memory/weak_ptr.h"
  #include "base/run_loop.h"
  #include "base/single_thread_task_runner.h"
  #include "base/stl_util.h"
  #include "base/strings/pattern.h"
  #include "base/strings/string16.h"
  #include "base/strings/string_number_conversions.h"
  #include "base/strings/string_util.h"
  #include "base/strings/utf_string_conversions.h"
  #include "base/threading/thread_task_runner_handle.h"
  #include "base/version.h"
  #include "build/build_config.h"
  #include "chrome/browser/after_startup_task_utils.h"
  #include "chrome/browser/browser_process.h"
  #include "chrome/browser/chrome_notification_types.h"
  #include "chrome/browser/extensions/blacklist.h"
  #include "chrome/browser/extensions/chrome_app_sorting.h"
  #include "chrome/browser/extensions/component_loader.h"
  #include "chrome/browser/extensions/crx_installer.h"
  #include "chrome/browser/extensions/default_apps.h"
  #include "chrome/browser/extensions/extension_creator.h"
  #include "chrome/browser/extensions/extension_error_reporter.h"
  #include "chrome/browser/extensions/extension_error_ui.h"
  #include "chrome/browser/extensions/extension_management_test_util.h"
  #include "chrome/browser/extensions/extension_service_test_base.h"
  #include "chrome/browser/extensions/extension_service_test_with_install.h"
  #include "chrome/browser/extensions/extension_special_storage_policy.h"
  #include "chrome/browser/extensions/extension_util.h"
  #include "chrome/browser/extensions/external_install_error.h"
  #include "chrome/browser/extensions/external_install_manager.h"
  #include "chrome/browser/extensions/external_policy_loader.h"
  #include "chrome/browser/extensions/external_pref_loader.h"
  #include "chrome/browser/extensions/external_provider_impl.h"
  #include "chrome/browser/extensions/fake_safe_browsing_database_manager.h"
  #include "chrome/browser/extensions/installed_loader.h"
  #include "chrome/browser/extensions/pack_extension_job.h"
  #include "chrome/browser/extensions/pending_extension_info.h"
  #include "chrome/browser/extensions/pending_extension_manager.h"
  #include "chrome/browser/extensions/permissions_updater.h"
  #include "chrome/browser/extensions/test_blacklist.h"
  #include "chrome/browser/extensions/test_extension_system.h"
  #include "chrome/browser/extensions/unpacked_installer.h"
  #include "chrome/browser/extensions/updater/extension_updater.h"
  #include "chrome/browser/policy/profile_policy_connector.h"
  #include "chrome/browser/policy/profile_policy_connector_factory.h"
  #include "chrome/browser/ui/global_error/global_error.h"
  #include "chrome/browser/ui/global_error/global_error_service.h"
  #include "chrome/browser/ui/global_error/global_error_service_factory.h"
  #include "chrome/common/chrome_constants.h"
  #include "chrome/common/chrome_switches.h"
  #include "chrome/common/extensions/api/plugins/plugins_handler.h"
  #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
  #include "chrome/common/extensions/manifest_handlers/content_scripts_handler.h"
  #include "chrome/common/pref_names.h"
  #include "chrome/common/url_constants.h"
  #include "chrome/grit/browser_resources.h"
  #include "chrome/grit/generated_resources.h"
  #include "chrome/test/base/scoped_browser_locale.h"
  #include "chrome/test/base/testing_profile.h"
  #include "components/crx_file/id_util.h"
  #include "components/pref_registry/pref_registry_syncable.h"
  #include "components/prefs/scoped_user_pref_update.h"
  #include "components/sync/model/string_ordinal.h"
  #include "components/sync_preferences/pref_service_syncable.h"
  #include "components/sync_preferences/testing_pref_service_syncable.h"
  #include "content/public/browser/dom_storage_context.h"
  #include "content/public/browser/gpu_data_manager.h"
  #include "content/public/browser/indexed_db_context.h"
  #include "content/public/browser/notification_service.h"
  #include "content/public/browser/plugin_service.h"
  #include "content/public/browser/render_process_host.h"
  #include "content/public/browser/storage_partition.h"
  #include "content/public/common/content_constants.h"
  #include "content/public/test/test_browser_thread_bundle.h"
  #include "content/public/test/test_utils.h"
  #include "extensions/browser/extension_dialog_auto_confirm.h"
  #include "extensions/browser/extension_prefs.h"
  #include "extensions/browser/extension_registry.h"
  #include "extensions/browser/extension_system.h"
  #include "extensions/browser/external_install_info.h"
  #include "extensions/browser/external_provider_interface.h"
  #include "extensions/browser/install_flag.h"
  #include "extensions/browser/management_policy.h"
  #include "extensions/browser/test_extension_registry_observer.h"
  #include "extensions/browser/test_management_policy.h"
  #include "extensions/browser/uninstall_reason.h"
  #include "extensions/common/constants.h"
  #include "extensions/common/extension.h"
  #include "extensions/common/extension_builder.h"
  #include "extensions/common/extension_l10n_util.h"
  #include "extensions/common/extension_resource.h"
  #include "extensions/common/manifest_constants.h"
  #include "extensions/common/manifest_handlers/background_info.h"
  #include "extensions/common/manifest_handlers/permissions_parser.h"
  #include "extensions/common/manifest_url_handlers.h"
  #include "extensions/common/permissions/permission_set.h"
  #include "extensions/common/permissions/permissions_data.h"
  #include "extensions/common/switches.h"
  #include "extensions/common/url_pattern.h"
  #include "extensions/common/value_builder.h"
  #include "gpu/config/gpu_info.h"
  #include "net/cookies/cookie_options.h"
  #include "net/cookies/cookie_store.h"
  #include "net/url_request/url_request_context.h"
  #include "net/url_request/url_request_context_getter.h"
  #include "storage/browser/database/database_tracker.h"
  #include "storage/browser/quota/quota_manager.h"
  #include "storage/common/database/database_identifier.h"
  #include "testing/gmock/include/gmock/gmock.h"
  #include "testing/gtest/include/gtest/gtest.h"
  #include "testing/platform_test.h"
  #include "ui/base/l10n/l10n_util.h"
  #include "url/gurl.h"
  
  #if defined(OS_CHROMEOS)
  #include "chrome/browser/chromeos/login/users/scoped_test_user_manager.h"
  #include "chrome/browser/chromeos/settings/cros_settings.h"
  #include "chrome/browser/chromeos/settings/device_settings_service.h"
  #endif
  
  // The blacklist tests rely on the safe-browsing database.
  #if defined(SAFE_BROWSING_DB_LOCAL)
  #define ENABLE_BLACKLIST_TESTS
  #endif
  
  using content::BrowserContext;
  using content::BrowserThread;
  using content::DOMStorageContext;
  using content::IndexedDBContext;
  using content::PluginService;
  using extensions::APIPermission;
  using extensions::APIPermissionSet;
  using extensions::AppSorting;
  using extensions::Blacklist;
  using extensions::CrxInstaller;
  using extensions::Extension;
  using extensions::ExtensionCreator;
  using extensions::ExtensionPrefs;
  using extensions::ExtensionRegistry;
  using extensions::ExtensionResource;
  using extensions::ExtensionSystem;
  using extensions::ExternalInstallError;
  using extensions::ExternalInstallInfoFile;
  using extensions::ExternalInstallInfoUpdateUrl;
  using extensions::ExternalProviderInterface;
  using extensions::FakeSafeBrowsingDatabaseManager;
  using extensions::FeatureSwitch;
  using extensions::Manifest;
  using extensions::PermissionSet;
  using extensions::TestExtensionSystem;
  using extensions::UnloadedExtensionInfo;
  using extensions::URLPatternSet;
  
  namespace keys = extensions::manifest_keys;
  
  namespace {
  
  // Extension ids used during testing.
  const char good0[] = "behllobkkfkfnphdnhnkndlbkcpglgmj";
  const char good1[] = "hpiknbiabeeppbpihjehijgoemciehgk";
  const char good2[] = "bjafgdebaacbbbecmhlhpofkepfkgcpa";
  const char all_zero[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
  const char good2048[] = "nmgjhmhbleinmjpbdhgajfjkbijcmgbh";
  const char good_crx[] = "ldnnhddmnhbkjipkidpdiheffobcpfmf";
  const char minimal_platform_app_crx[] = "jjeoclcdfjddkdjokiejckgcildcflpp";
  const char hosted_app[] = "kbmnembihfiondgfjekmnmcbddelicoi";
  const char page_action[] = "obcimlgaoabeegjmmpldobjndiealpln";
  const char theme_crx[] = "iamefpfkojoapidjnbafmgkgncegbkad";
  const char theme2_crx[] = "pjpgmfcmabopnnfonnhmdjglfpjjfkbf";
  const char permissions_crx[] = "eagpmdpfmaekmmcejjbmjoecnejeiiin";
  const char updates_from_webstore[] = "akjooamlhcgeopfifcmlggaebeocgokj";
  const char updates_from_webstore2[] = "oolblhbomdbcpmafphaodhjfcgbihcdg";
  const char updates_from_webstore3[] = "bmfoocgfinpmkmlbjhcbofejhkhlbchk";
  const char permissions_blocklist[] = "noffkehfcaggllbcojjbopcmlhcnhcdn";
  
  struct BubbleErrorsTestData {
    BubbleErrorsTestData(const std::string& id,
                         const std::string& version,
                         const base::FilePath& crx_path,
                         size_t expected_bubble_error_count)
        : id(id),
          version(version),
          crx_path(crx_path),
          expected_bubble_error_count(expected_bubble_error_count) {}
    std::string id;
    std::string version;
    base::FilePath crx_path;
    size_t expected_bubble_error_count;
    bool expect_has_shown_bubble_view;
  };
  
  static void AddPattern(URLPatternSet* extent, const std::string& pattern) {
    int schemes = URLPattern::SCHEME_ALL;
    extent->AddPattern(URLPattern(schemes, pattern));
  }
  
  base::FilePath GetTemporaryFile() {
    base::FilePath temp_file;
    CHECK(base::CreateTemporaryFile(&temp_file));
    return temp_file;
  }
  
  bool WaitForCountNotificationsCallback(int *count) {
    return --(*count) == 0;
  }
  
  bool HasExternalInstallErrors(ExtensionService* service) {
    return !service->external_install_manager()->GetErrorsForTesting().empty();
  }
  
  bool HasExternalInstallBubble(ExtensionService* service) {
    std::vector<ExternalInstallError*> errors =
        service->external_install_manager()->GetErrorsForTesting();
    auto found = std::find_if(
        errors.begin(), errors.end(),
        [](const ExternalInstallError* error) {
      return error->alert_type() == ExternalInstallError::BUBBLE_ALERT;
    });
    return found != errors.end();
  }
  
  size_t GetExternalInstallBubbleCount(ExtensionService* service) {
    size_t bubble_count = 0u;
    std::vector<ExternalInstallError*> errors =
        service->external_install_manager()->GetErrorsForTesting();
    for (auto* error : errors)
      bubble_count += error->alert_type() == ExternalInstallError::BUBBLE_ALERT;
    return bubble_count;
  }
  
  }  // namespace
  
  class MockExtensionProvider : public extensions::ExternalProviderInterface {
   public:
    MockExtensionProvider(
        VisitorInterface* visitor,
        Manifest::Location location)
      : location_(location), visitor_(visitor), visit_count_(0) {
    }
  
    ~MockExtensionProvider() override {}
  
    void UpdateOrAddExtension(const std::string& id,
                              const std::string& version,
                              const base::FilePath& path) {
      extension_map_[id] = std::make_pair(version, path);
    }
  
    void RemoveExtension(const std::string& id) {
      extension_map_.erase(id);
    }
  
    // ExternalProvider implementation:
    void VisitRegisteredExtension() override {
      visit_count_++;
      for (DataMap::const_iterator i = extension_map_.begin();
           i != extension_map_.end(); ++i) {
        std::unique_ptr<base::Version> version(
            new base::Version(i->second.first));
  
        std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
            i->first, std::move(version), i->second.second, location_,
            Extension::NO_FLAGS, false, false));
        visitor_->OnExternalExtensionFileFound(*info);
      }
      visitor_->OnExternalProviderReady(this);
    }
  
    bool HasExtension(const std::string& id) const override {
      return extension_map_.find(id) != extension_map_.end();
    }
  
    bool GetExtensionDetails(
        const std::string& id,
        Manifest::Location* location,
        std::unique_ptr<base::Version>* version) const override {
      DataMap::const_iterator it = extension_map_.find(id);
      if (it == extension_map_.end())
        return false;
  
      if (version)
        version->reset(new base::Version(it->second.first));
  
      if (location)
        *location = location_;
  
      return true;
    }
  
    bool IsReady() const override { return true; }
  
    void ServiceShutdown() override {}
  
    int visit_count() const { return visit_count_; }
    void set_visit_count(int visit_count) {
      visit_count_ = visit_count;
    }
  
   private:
    typedef std::map< std::string, std::pair<std::string, base::FilePath> >
        DataMap;
    DataMap extension_map_;
    Manifest::Location location_;
    VisitorInterface* visitor_;
  
    // visit_count_ tracks the number of calls to VisitRegisteredExtension().
    // Mutable because it must be incremented on each call to
    // VisitRegisteredExtension(), which must be a const method to inherit
    // from the class being mocked.
    mutable int visit_count_;
  
    DISALLOW_COPY_AND_ASSIGN(MockExtensionProvider);
  };
  
  class MockProviderVisitor
      : public extensions::ExternalProviderInterface::VisitorInterface {
   public:
    // The provider will return |fake_base_path| from
    // GetBaseCrxFilePath().  User can test the behavior with
    // and without an empty path using this parameter.
    explicit MockProviderVisitor(base::FilePath fake_base_path)
        : ids_found_(0),
          fake_base_path_(fake_base_path),
          expected_creation_flags_(Extension::NO_FLAGS) {
      profile_.reset(new TestingProfile);
    }
  
    MockProviderVisitor(base::FilePath fake_base_path,
                        int expected_creation_flags)
        : ids_found_(0),
          fake_base_path_(fake_base_path),
          expected_creation_flags_(expected_creation_flags) {
      profile_.reset(new TestingProfile);
    }
  
    int Visit(const std::string& json_data) {
      return Visit(json_data, Manifest::EXTERNAL_PREF,
                   Manifest::EXTERNAL_PREF_DOWNLOAD);
    }
  
    int Visit(const std::string& json_data,
              Manifest::Location crx_location,
              Manifest::Location download_location) {
      crx_location_ = crx_location;
      // Give the test json file to the provider for parsing.
      provider_.reset(new extensions::ExternalProviderImpl(
          this, new extensions::ExternalTestingLoader(json_data, fake_base_path_),
          profile_.get(), crx_location, download_location, Extension::NO_FLAGS));
  
      // We also parse the file into a dictionary to compare what we get back
      // from the provider.
      prefs_ = GetDictionaryFromJSON(json_data);
  
      // Reset our counter.
      ids_found_ = 0;
      // Ask the provider to look up all extensions and return them.
      provider_->VisitRegisteredExtension();
  
      return ids_found_;
    }
  
    bool OnExternalExtensionFileFound(
        const ExternalInstallInfoFile& info) override {
      EXPECT_EQ(expected_creation_flags_, info.creation_flags);
  
      ++ids_found_;
      base::DictionaryValue* pref;
      // This tests is to make sure that the provider only notifies us of the
      // values we gave it. So if the id we doesn't exist in our internal
      // dictionary then something is wrong.
      EXPECT_TRUE(prefs_->GetDictionary(info.extension_id, &pref))
          << "Got back ID (" << info.extension_id.c_str()
          << ") we weren't expecting";
  
      EXPECT_TRUE(info.path.IsAbsolute());
      if (!fake_base_path_.empty())
        EXPECT_TRUE(fake_base_path_.IsParent(info.path));
  
      if (pref) {
        EXPECT_TRUE(provider_->HasExtension(info.extension_id));
  
        // Ask provider if the extension we got back is registered.
        Manifest::Location location = Manifest::INVALID_LOCATION;
        std::unique_ptr<base::Version> v1;
        base::FilePath crx_path;
  
        EXPECT_TRUE(provider_->GetExtensionDetails(info.extension_id, NULL, &v1));
        EXPECT_STREQ(info.version->GetString().c_str(), v1->GetString().c_str());
  
        std::unique_ptr<base::Version> v2;
        EXPECT_TRUE(
            provider_->GetExtensionDetails(info.extension_id, &location, &v2));
        EXPECT_STREQ(info.version->GetString().c_str(), v1->GetString().c_str());
        EXPECT_STREQ(info.version->GetString().c_str(), v2->GetString().c_str());
        EXPECT_EQ(crx_location_, location);
  
        // Remove it so we won't count it ever again.
        prefs_->Remove(info.extension_id, NULL);
      }
      return true;
    }
  
    bool OnExternalExtensionUpdateUrlFound(
        const ExternalInstallInfoUpdateUrl& info,
        bool is_initial_load) override {
      ++ids_found_;
      base::DictionaryValue* pref;
      // This tests is to make sure that the provider only notifies us of the
      // values we gave it. So if the id we doesn't exist in our internal
      // dictionary then something is wrong.
      EXPECT_TRUE(prefs_->GetDictionary(info.extension_id, &pref))
          << L"Got back ID (" << info.extension_id.c_str()
          << ") we weren't expecting";
      EXPECT_EQ(Manifest::EXTERNAL_PREF_DOWNLOAD, info.download_location);
  
      if (pref) {
        EXPECT_TRUE(provider_->HasExtension(info.extension_id));
  
        // External extensions with update URLs do not have versions.
        std::unique_ptr<base::Version> v1;
        Manifest::Location location1 = Manifest::INVALID_LOCATION;
        EXPECT_TRUE(
            provider_->GetExtensionDetails(info.extension_id, &location1, &v1));
        EXPECT_FALSE(v1.get());
        EXPECT_EQ(Manifest::EXTERNAL_PREF_DOWNLOAD, location1);
  
        std::string parsed_install_parameter;
        pref->GetString("install_parameter", &parsed_install_parameter);
        EXPECT_EQ(parsed_install_parameter, info.install_parameter);
  
        // Remove it so we won't count it again.
        prefs_->Remove(info.extension_id, NULL);
      }
      return true;
    }
  
    void OnExternalProviderUpdateComplete(
        const ExternalProviderInterface* provider,
        const std::vector<std::unique_ptr<ExternalInstallInfoUpdateUrl>>&
            update_url_extensions,
        const std::vector<std::unique_ptr<ExternalInstallInfoFile>>&
            file_extensions,
        const std::set<std::string>& removed_extensions) override {
      ADD_FAILURE() << "MockProviderVisitor does not provide incremental updates,"
                       " use MockUpdateProviderVisitor instead.";
    }
  
    void OnExternalProviderReady(
        const extensions::ExternalProviderInterface* provider) override {
      EXPECT_EQ(provider, provider_.get());
      EXPECT_TRUE(provider->IsReady());
    }
  
    Profile* profile() { return profile_.get(); }
  
   protected:
    std::unique_ptr<extensions::ExternalProviderImpl> provider_;
  
    std::unique_ptr<base::DictionaryValue> GetDictionaryFromJSON(
        const std::string& json_data) {
      // We also parse the file into a dictionary to compare what we get back
      // from the provider.
      JSONStringValueDeserializer deserializer(json_data);
      std::unique_ptr<base::Value> json_value =
          deserializer.Deserialize(NULL, NULL);
  
      if (!json_value || !json_value->IsType(base::Value::TYPE_DICTIONARY)) {
        ADD_FAILURE() << "Unable to deserialize json data";
        return std::unique_ptr<base::DictionaryValue>();
      } else {
        return base::DictionaryValue::From(std::move(json_value));
      }
    }
  
   private:
    int ids_found_;
    base::FilePath fake_base_path_;
    int expected_creation_flags_;
    Manifest::Location crx_location_;
    std::unique_ptr<base::DictionaryValue> prefs_;
    std::unique_ptr<TestingProfile> profile_;
  
    DISALLOW_COPY_AND_ASSIGN(MockProviderVisitor);
  };
  
  // Mock provider that can simulate incremental update like
  // ExternalRegistryLoader.
  class MockUpdateProviderVisitor : public MockProviderVisitor {
   public:
    // The provider will return |fake_base_path| from
    // GetBaseCrxFilePath().  User can test the behavior with
    // and without an empty path using this parameter.
    explicit MockUpdateProviderVisitor(base::FilePath fake_base_path)
        : MockProviderVisitor(fake_base_path) {}
  
    void VisitDueToUpdate(const std::string& json_data) {
      update_url_extension_ids_.clear();
      file_extension_ids_.clear();
      removed_extension_ids_.clear();
  
      std::unique_ptr<base::DictionaryValue> new_prefs =
          GetDictionaryFromJSON(json_data);
      if (!new_prefs)
        return;
      provider_->UpdatePrefs(new_prefs.release());
    }
  
    void OnExternalProviderUpdateComplete(
        const ExternalProviderInterface* provider,
        const std::vector<std::unique_ptr<ExternalInstallInfoUpdateUrl>>&
            update_url_extensions,
        const std::vector<std::unique_ptr<ExternalInstallInfoFile>>&
            file_extensions,
        const std::set<std::string>& removed_extensions) override {
      for (const auto& extension_info : update_url_extensions)
        update_url_extension_ids_.insert(extension_info->extension_id);
      EXPECT_EQ(update_url_extension_ids_.size(), update_url_extensions.size());
  
      for (const auto& extension_info : file_extensions)
        file_extension_ids_.insert(extension_info->extension_id);
      EXPECT_EQ(file_extension_ids_.size(), file_extensions.size());
  
      for (const auto& extension_id : removed_extensions)
        removed_extension_ids_.insert(extension_id);
    }
  
    size_t GetUpdateURLExtensionCount() {
      return update_url_extension_ids_.size();
    }
    size_t GetFileExtensionCount() { return file_extension_ids_.size(); }
    size_t GetRemovedExtensionCount() { return removed_extension_ids_.size(); }
  
    bool HasSeenUpdateWithUpdateUrl(const std::string& extension_id) {
      return update_url_extension_ids_.count(extension_id) > 0u;
    }
    bool HasSeenUpdateWithFile(const std::string& extension_id) {
      return file_extension_ids_.count(extension_id) > 0u;
    }
    bool HasSeenRemoval(const std::string& extension_id) {
      return removed_extension_ids_.count(extension_id) > 0u;
    }
  
   private:
    std::set<std::string> update_url_extension_ids_;
    std::set<std::string> file_extension_ids_;
    std::set<std::string> removed_extension_ids_;
  
    DISALLOW_COPY_AND_ASSIGN(MockUpdateProviderVisitor);
  };
  
  class ExtensionServiceTest
      : public extensions::ExtensionServiceTestWithInstall {
   public:
    ExtensionServiceTest() {
      // The extension subsystem posts logging tasks to be done after
      // browser startup. There's no StartupObserver as there normally
      // would be since we're in a unit test, so we have to explicitly
      // note tasks should be processed.
      AfterStartupTaskUtils::SetBrowserStartupIsCompleteForTesting();
    }
  
    void AddMockExternalProvider(
        extensions::ExternalProviderInterface* provider) {
      service()->AddProviderForTesting(base::WrapUnique(provider));
    }
  
   protected:
    // Paths to some of the fake extensions.
    base::FilePath good1_path() {
      return data_dir()
          .AppendASCII("good")
          .AppendASCII("Extensions")
          .AppendASCII(good1)
          .AppendASCII("2");
    }
  
    base::FilePath good2_path() {
      return data_dir()
          .AppendASCII("good")
          .AppendASCII("Extensions")
          .AppendASCII(good2)
          .AppendASCII("1.0");
    }
  
    void TestExternalProvider(MockExtensionProvider* provider,
                              Manifest::Location location);
  
    void BlackListWebGL() {
      static const std::string json_blacklist =
        "{\n"
        "  \"name\": \"gpu blacklist\",\n"
        "  \"version\": \"1.0\",\n"
        "  \"entries\": [\n"
        "    {\n"
        "      \"id\": 1,\n"
        "      \"features\": [\"webgl\"]\n"
        "    }\n"
        "  ]\n"
        "}";
      gpu::GPUInfo gpu_info;
      content::GpuDataManager::GetInstance()->InitializeForTesting(
          json_blacklist, gpu_info);
    }
  
    // Grants all optional permissions stated in manifest to active permission
    // set for extension |id|.
    void GrantAllOptionalPermissions(const std::string& id) {
      const Extension* extension = service()->GetInstalledExtension(id);
      const PermissionSet& all_optional_permissions =
          extensions::PermissionsParser::GetOptionalPermissions(extension);
      extensions::PermissionsUpdater perms_updater(profile());
      perms_updater.AddPermissions(extension, all_optional_permissions);
    }
  
    testing::AssertionResult IsBlocked(const std::string& id) {
      std::unique_ptr<extensions::ExtensionSet> all_unblocked_extensions =
          registry()->GenerateInstalledExtensionsSet(
              ExtensionRegistry::EVERYTHING & ~ExtensionRegistry::BLOCKED);
      if (all_unblocked_extensions->Contains(id))
        return testing::AssertionFailure() << id << " is still unblocked!";
      if (!registry()->blocked_extensions().Contains(id))
        return testing::AssertionFailure() << id << " is not blocked!";
      return testing::AssertionSuccess();
    }
  
    // Helper method to test that an extension moves through being blocked and
    // unblocked as appropriate for its type.
    void AssertExtensionBlocksAndUnblocks(
        bool should_block, const std::string extension_id) {
      // Assume we start in an unblocked state.
      EXPECT_FALSE(IsBlocked(extension_id));
  
      // Block the extensions.
      service()->BlockAllExtensions();
      base::RunLoop().RunUntilIdle();
  
      if (should_block)
        ASSERT_TRUE(IsBlocked(extension_id));
      else
        ASSERT_FALSE(IsBlocked(extension_id));
  
      service()->UnblockAllExtensions();
      base::RunLoop().RunUntilIdle();
  
      ASSERT_FALSE(IsBlocked(extension_id));
    }
  
    bool IsPrefExist(const std::string& extension_id,
                     const std::string& pref_path) {
      const base::DictionaryValue* dict =
          profile()->GetPrefs()->GetDictionary("extensions.settings");
      if (dict == NULL) return false;
      const base::DictionaryValue* pref = NULL;
      if (!dict->GetDictionary(extension_id, &pref)) {
        return false;
      }
      if (pref == NULL) {
        return false;
      }
      bool val;
      if (!pref->GetBoolean(pref_path, &val)) {
        return false;
      }
      return true;
    }
  
    void SetPref(const std::string& extension_id,
                 const std::string& pref_path,
                 base::Value* value,
                 const std::string& msg) {
      DictionaryPrefUpdate update(profile()->GetPrefs(), "extensions.settings");
      base::DictionaryValue* dict = update.Get();
      ASSERT_TRUE(dict != NULL) << msg;
      base::DictionaryValue* pref = NULL;
      ASSERT_TRUE(dict->GetDictionary(extension_id, &pref)) << msg;
      EXPECT_TRUE(pref != NULL) << msg;
      pref->Set(pref_path, value);
    }
  
    void SetPrefInteg(const std::string& extension_id,
                      const std::string& pref_path,
                      int value) {
      std::string msg = " while setting: ";
      msg += extension_id;
      msg += " ";
      msg += pref_path;
      msg += " = ";
      msg += base::IntToString(value);
  
      SetPref(extension_id, pref_path, new base::FundamentalValue(value), msg);
    }
  
    void SetPrefBool(const std::string& extension_id,
                     const std::string& pref_path,
                     bool value) {
      std::string msg = " while setting: ";
      msg += extension_id + " " + pref_path;
      msg += " = ";
      msg += (value ? "true" : "false");
  
      SetPref(extension_id, pref_path, new base::FundamentalValue(value), msg);
    }
  
    void ClearPref(const std::string& extension_id,
                   const std::string& pref_path) {
      std::string msg = " while clearing: ";
      msg += extension_id + " " + pref_path;
  
      DictionaryPrefUpdate update(profile()->GetPrefs(), "extensions.settings");
      base::DictionaryValue* dict = update.Get();
      ASSERT_TRUE(dict != NULL) << msg;
      base::DictionaryValue* pref = NULL;
      ASSERT_TRUE(dict->GetDictionary(extension_id, &pref)) << msg;
      EXPECT_TRUE(pref != NULL) << msg;
      pref->Remove(pref_path, NULL);
    }
  
    void SetPrefStringSet(const std::string& extension_id,
                          const std::string& pref_path,
                          const std::set<std::string>& value) {
      std::string msg = " while setting: ";
      msg += extension_id + " " + pref_path;
  
      base::ListValue* list_value = new base::ListValue();
      for (std::set<std::string>::const_iterator iter = value.begin();
           iter != value.end(); ++iter)
        list_value->AppendString(*iter);
  
      SetPref(extension_id, pref_path, list_value, msg);
    }
  
    void InitPluginService() {
  #if defined(ENABLE_PLUGINS)
      PluginService::GetInstance()->Init();
  #endif
    }
  
    void InitializeEmptyExtensionServiceWithTestingPrefs() {
      ExtensionServiceTestBase::ExtensionServiceInitParams params =
          CreateDefaultInitParams();
      params.pref_file = base::FilePath();
      InitializeExtensionService(params);
    }
  
    extensions::ManagementPolicy* GetManagementPolicy() {
      return ExtensionSystem::Get(browser_context())->management_policy();
    }
  
    ExternalInstallError* GetError(const std::string& extension_id) {
      std::vector<ExternalInstallError*> errors =
          service_->external_install_manager()->GetErrorsForTesting();
      auto found = std::find_if(
          errors.begin(), errors.end(),
          [&extension_id](const ExternalInstallError* error) {
        return error->extension_id() == extension_id;
      });
      return found == errors.end() ? nullptr : *found;
    }
  
    typedef extensions::ExtensionManagementPrefUpdater<
        sync_preferences::TestingPrefServiceSyncable>
        ManagementPrefUpdater;
  };
  
  // Receives notifications from a PackExtensionJob, indicating either that
  // packing succeeded or that there was some error.
  class PackExtensionTestClient : public extensions::PackExtensionJob::Client {
   public:
    PackExtensionTestClient(const base::FilePath& expected_crx_path,
                            const base::FilePath& expected_private_key_path);
    void OnPackSuccess(const base::FilePath& crx_path,
                       const base::FilePath& private_key_path) override;
    void OnPackFailure(const std::string& error_message,
                       ExtensionCreator::ErrorType type) override;
  
   private:
    const base::FilePath expected_crx_path_;
    const base::FilePath expected_private_key_path_;
    DISALLOW_COPY_AND_ASSIGN(PackExtensionTestClient);
  };
  
  PackExtensionTestClient::PackExtensionTestClient(
      const base::FilePath& expected_crx_path,
      const base::FilePath& expected_private_key_path)
      : expected_crx_path_(expected_crx_path),
        expected_private_key_path_(expected_private_key_path) {}
  
  // If packing succeeded, we make sure that the package names match our
  // expectations.
  void PackExtensionTestClient::OnPackSuccess(
      const base::FilePath& crx_path,
      const base::FilePath& private_key_path) {
    // We got the notification and processed it; we don't expect any further tasks
    // to be posted to the current thread, so we should stop blocking and continue
    // on with the rest of the test.
    // This call to |Quit()| matches the call to |Run()| in the
    // |PackPunctuatedExtension| test.
    base::MessageLoop::current()->QuitWhenIdle();
    EXPECT_EQ(expected_crx_path_.value(), crx_path.value());
    EXPECT_EQ(expected_private_key_path_.value(), private_key_path.value());
    ASSERT_TRUE(base::PathExists(private_key_path));
  }
  
  // The tests are designed so that we never expect to see a packing error.
  void PackExtensionTestClient::OnPackFailure(const std::string& error_message,
                                              ExtensionCreator::ErrorType type) {
    if (type == ExtensionCreator::kCRXExists)
       FAIL() << "Packing should not fail.";
    else
       FAIL() << "Existing CRX should have been overwritten.";
  }
  
  // Test loading good extensions from the profile directory.
  TEST_F(ExtensionServiceTest, LoadAllExtensionsFromDirectorySuccess) {
    InitPluginService();
    InitializeGoodInstalledExtensionService();
    service()->Init();
  
    uint32_t expected_num_extensions = 3u;
    ASSERT_EQ(expected_num_extensions, loaded_.size());
  
    EXPECT_EQ(std::string(good0), loaded_[0]->id());
    EXPECT_EQ(std::string("My extension 1"),
              loaded_[0]->name());
    EXPECT_EQ(std::string("The first extension that I made."),
              loaded_[0]->description());
    EXPECT_EQ(Manifest::INTERNAL, loaded_[0]->location());
    EXPECT_TRUE(service()->GetExtensionById(loaded_[0]->id(), false));
    EXPECT_EQ(expected_num_extensions, registry()->enabled_extensions().size());
  
    ValidatePrefKeyCount(3);
    ValidateIntegerPref(good0, "state", Extension::ENABLED);
    ValidateIntegerPref(good0, "location", Manifest::INTERNAL);
    ValidateIntegerPref(good1, "state", Extension::ENABLED);
    ValidateIntegerPref(good1, "location", Manifest::INTERNAL);
    ValidateIntegerPref(good2, "state", Extension::ENABLED);
    ValidateIntegerPref(good2, "location", Manifest::INTERNAL);
  
    URLPatternSet expected_patterns;
    AddPattern(&expected_patterns, "file:///*");
    AddPattern(&expected_patterns, "http://*.google.com/*");
    AddPattern(&expected_patterns, "https://*.google.com/*");
    const Extension* extension = loaded_[0].get();
    const extensions::UserScriptList& scripts =
        extensions::ContentScriptsInfo::GetContentScripts(extension);
    ASSERT_EQ(2u, scripts.size());
    EXPECT_EQ(expected_patterns, scripts[0]->url_patterns());
    EXPECT_EQ(2u, scripts[0]->js_scripts().size());
    ExtensionResource resource00(extension->id(),
                                 scripts[0]->js_scripts()[0]->extension_root(),
                                 scripts[0]->js_scripts()[0]->relative_path());
    base::FilePath expected_path =
        base::MakeAbsoluteFilePath(extension->path().AppendASCII("script1.js"));
    EXPECT_TRUE(resource00.ComparePathWithDefault(expected_path));
    ExtensionResource resource01(extension->id(),
                                 scripts[0]->js_scripts()[1]->extension_root(),
                                 scripts[0]->js_scripts()[1]->relative_path());
    expected_path =
        base::MakeAbsoluteFilePath(extension->path().AppendASCII("script2.js"));
    EXPECT_TRUE(resource01.ComparePathWithDefault(expected_path));
    EXPECT_TRUE(!extensions::PluginInfo::HasPlugins(extension));
    EXPECT_EQ(1u, scripts[1]->url_patterns().patterns().size());
    EXPECT_EQ("http://*.news.com/*",
              scripts[1]->url_patterns().begin()->GetAsString());
    ExtensionResource resource10(extension->id(),
                                 scripts[1]->js_scripts()[0]->extension_root(),
                                 scripts[1]->js_scripts()[0]->relative_path());
    expected_path =
        extension->path().AppendASCII("js_files").AppendASCII("script3.js");
    expected_path = base::MakeAbsoluteFilePath(expected_path);
    EXPECT_TRUE(resource10.ComparePathWithDefault(expected_path));
  
    expected_patterns.ClearPatterns();
    AddPattern(&expected_patterns, "http://*.google.com/*");
    AddPattern(&expected_patterns, "https://*.google.com/*");
    EXPECT_EQ(
        expected_patterns,
        extension->permissions_data()->active_permissions().explicit_hosts());
  
    EXPECT_EQ(std::string(good1), loaded_[1]->id());
    EXPECT_EQ(std::string("My extension 2"), loaded_[1]->name());
    EXPECT_EQ(std::string(), loaded_[1]->description());
    EXPECT_EQ(loaded_[1]->GetResourceURL("background.html"),
              extensions::BackgroundInfo::GetBackgroundURL(loaded_[1].get()));
    EXPECT_TRUE(
        extensions::ContentScriptsInfo::GetContentScripts(loaded_[1].get())
            .empty());
  
    // We don't parse the plugins section on Chrome OS.
  #if defined(OS_CHROMEOS)
    EXPECT_TRUE(!extensions::PluginInfo::HasPlugins(loaded_[1].get()));
  #else
    ASSERT_TRUE(extensions::PluginInfo::HasPlugins(loaded_[1].get()));
    const std::vector<extensions::PluginInfo>* plugins =
        extensions::PluginInfo::GetPlugins(loaded_[1].get());
    ASSERT_TRUE(plugins);
    ASSERT_EQ(2u, plugins->size());
    EXPECT_EQ(loaded_[1]->path().AppendASCII("content_plugin.dll").value(),
              plugins->at(0).path.value());
    EXPECT_TRUE(plugins->at(0).is_public);
    EXPECT_EQ(loaded_[1]->path().AppendASCII("extension_plugin.dll").value(),
              plugins->at(1).path.value());
    EXPECT_FALSE(plugins->at(1).is_public);
  #endif
  
    EXPECT_EQ(Manifest::INTERNAL, loaded_[1]->location());
  
    int index = expected_num_extensions - 1;
    EXPECT_EQ(std::string(good2), loaded_[index]->id());
    EXPECT_EQ(std::string("My extension 3"), loaded_[index]->name());
    EXPECT_EQ(std::string(), loaded_[index]->description());
    EXPECT_TRUE(
        extensions::ContentScriptsInfo::GetContentScripts(loaded_[index].get())
            .empty());
    EXPECT_EQ(Manifest::INTERNAL, loaded_[index]->location());
  }
  
  // Test loading bad extensions from the profile directory.
  TEST_F(ExtensionServiceTest, LoadAllExtensionsFromDirectoryFail) {
    // Initialize the test dir with a bad Preferences/extensions.
    base::FilePath source_install_dir =
        data_dir().AppendASCII("bad").AppendASCII("Extensions");
    base::FilePath pref_path =
        source_install_dir.DirName().Append(chrome::kPreferencesFilename);
  
    InitializeInstalledExtensionService(pref_path, source_install_dir);
  
    service()->Init();
  
    ASSERT_EQ(4u, GetErrors().size());
    ASSERT_EQ(0u, loaded_.size());
  
    EXPECT_TRUE(base::MatchPattern(base::UTF16ToUTF8(GetErrors()[0]),
        l10n_util::GetStringUTF8(IDS_EXTENSIONS_LOAD_ERROR_MESSAGE) + " *. " +
        extensions::manifest_errors::kManifestUnreadable)) <<
        base::UTF16ToUTF8(GetErrors()[0]);
  
    EXPECT_TRUE(base::MatchPattern(base::UTF16ToUTF8(GetErrors()[1]),
        l10n_util::GetStringUTF8(IDS_EXTENSIONS_LOAD_ERROR_MESSAGE) + " *. " +
        extensions::manifest_errors::kManifestUnreadable)) <<
        base::UTF16ToUTF8(GetErrors()[1]);
  
    EXPECT_TRUE(base::MatchPattern(base::UTF16ToUTF8(GetErrors()[2]),
        l10n_util::GetStringUTF8(IDS_EXTENSIONS_LOAD_ERROR_MESSAGE) + " *. " +
        extensions::manifest_errors::kMissingFile)) <<
        base::UTF16ToUTF8(GetErrors()[2]);
  
    EXPECT_TRUE(base::MatchPattern(base::UTF16ToUTF8(GetErrors()[3]),
        l10n_util::GetStringUTF8(IDS_EXTENSIONS_LOAD_ERROR_MESSAGE) + " *. " +
        extensions::manifest_errors::kManifestUnreadable)) <<
        base::UTF16ToUTF8(GetErrors()[3]);
  }
  
  // Test various cases for delayed install because of missing imports.
  TEST_F(ExtensionServiceTest, PendingImports) {
    InitPluginService();
  
    base::FilePath source_install_dir =
        data_dir().AppendASCII("pending_updates_with_imports").AppendASCII(
            "Extensions");
    base::FilePath pref_path =
        source_install_dir.DirName().Append(chrome::kPreferencesFilename);
  
    InitializeInstalledExtensionService(pref_path, source_install_dir);
  
    // Verify there are no pending extensions initially.
    EXPECT_FALSE(service()->pending_extension_manager()->HasPendingExtensions());
  
    service()->Init();
    // Wait for GarbageCollectExtensions task to complete.
    base::RunLoop().RunUntilIdle();
  
    // These extensions are used by the extensions we test below, they must be
    // installed.
    EXPECT_TRUE(base::PathExists(extensions_install_dir().AppendASCII(
        "bjafgdebaacbbbecmhlhpofkepfkgcpa/1.0")));
    EXPECT_TRUE(base::PathExists(extensions_install_dir().AppendASCII(
        "hpiknbiabeeppbpihjehijgoemciehgk/2")));
  
    // Each of these extensions should have been rejected because of dependencies
    // that cannot be satisfied.
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
    EXPECT_FALSE(
        prefs->GetDelayedInstallInfo("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"));
    EXPECT_FALSE(
        prefs->GetInstalledExtensionInfo("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"));
    EXPECT_FALSE(
        prefs->GetDelayedInstallInfo("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"));
    EXPECT_FALSE(
        prefs->GetInstalledExtensionInfo("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"));
    EXPECT_FALSE(
        prefs->GetDelayedInstallInfo("cccccccccccccccccccccccccccccccc"));
    EXPECT_FALSE(
        prefs->GetInstalledExtensionInfo("cccccccccccccccccccccccccccccccc"));
  
    // Make sure the import started for the extension with a dependency.
    EXPECT_TRUE(
        prefs->GetDelayedInstallInfo("behllobkkfkfnphdnhnkndlbkcpglgmj"));
    EXPECT_EQ(ExtensionPrefs::DELAY_REASON_WAIT_FOR_IMPORTS,
        prefs->GetDelayedInstallReason("behllobkkfkfnphdnhnkndlbkcpglgmj"));
  
    EXPECT_FALSE(base::PathExists(extensions_install_dir().AppendASCII(
        "behllobkkfkfnphdnhnkndlbkcpglgmj/1.0.0.0")));
  
    EXPECT_TRUE(service()->pending_extension_manager()->HasPendingExtensions());
    std::string pending_id("eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee");
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(pending_id));
    // Remove it because we are not testing the pending extension manager's
    // ability to download and install extensions.
    EXPECT_TRUE(service()->pending_extension_manager()->Remove(pending_id));
  }
  
  // Test installing extensions. This test tries to install few extensions using
  // crx files. If you need to change those crx files, feel free to repackage
  // them, throw away the key used and change the id's above.
  TEST_F(ExtensionServiceTest, InstallExtension) {
    InitializeEmptyExtensionService();
  
    // Extensions not enabled.
    service()->set_extensions_enabled(false);
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_FAILED);
    service()->set_extensions_enabled(true);
  
    ValidatePrefKeyCount(0);
  
    // A simple extension that should install without error.
    path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
    // TODO(erikkay): verify the contents of the installed extension.
  
    int pref_count = 0;
    ValidatePrefKeyCount(++pref_count);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", Manifest::INTERNAL);
  
    // An extension with page actions.
    path = data_dir().AppendASCII("page_action.crx");
    InstallCRX(path, INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ValidateIntegerPref(page_action, "state", Extension::ENABLED);
    ValidateIntegerPref(page_action, "location", Manifest::INTERNAL);
  
    // Bad signature.
    path = data_dir().AppendASCII("bad_signature.crx");
    InstallCRX(path, INSTALL_FAILED);
    ValidatePrefKeyCount(pref_count);
  
    // 0-length extension file.
    path = data_dir().AppendASCII("not_an_extension.crx");
    InstallCRX(path, INSTALL_FAILED);
    ValidatePrefKeyCount(pref_count);
  
    // Bad magic number.
    path = data_dir().AppendASCII("bad_magic.crx");
    InstallCRX(path, INSTALL_FAILED);
    ValidatePrefKeyCount(pref_count);
  
    // Packed extensions may have folders or files that have underscores.
    // This will only cause a warning, rather than a fatal error.
    path = data_dir().AppendASCII("bad_underscore.crx");
    InstallCRX(path, INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
  
    // A test for an extension with a 2048-bit public key.
    path = data_dir().AppendASCII("good2048.crx");
    InstallCRX(path, INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ValidateIntegerPref(good2048, "state", Extension::ENABLED);
    ValidateIntegerPref(good2048, "location", Manifest::INTERNAL);
  
    // TODO(erikkay): add more tests for many of the failure cases.
    // TODO(erikkay): add tests for upgrade cases.
  }
  
  struct MockExtensionRegistryObserver
      : public extensions::ExtensionRegistryObserver {
    void OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
                                    const Extension* extension,
                                    bool is_update,
                                    const std::string& old_name) override {
      last_extension_installed = extension->id();
    }
  
    void OnExtensionUninstalled(content::BrowserContext* browser_context,
                                const Extension* extension,
                                extensions::UninstallReason reason) override {
      last_extension_uninstalled = extension->id();
    }
  
    std::string last_extension_installed;
    std::string last_extension_uninstalled;
  };
  
  // Test that correct notifications are sent to ExtensionRegistryObserver on
  // extension install and uninstall.
  TEST_F(ExtensionServiceTest, InstallObserverNotified) {
    InitializeEmptyExtensionService();
  
    extensions::ExtensionRegistry* registry(
        extensions::ExtensionRegistry::Get(profile()));
    MockExtensionRegistryObserver observer;
    registry->AddObserver(&observer);
  
    // A simple extension that should install without error.
    ASSERT_TRUE(observer.last_extension_installed.empty());
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ(good_crx, observer.last_extension_installed);
  
    // Uninstall the extension.
    ASSERT_TRUE(observer.last_extension_uninstalled.empty());
    UninstallExtension(good_crx, false);
    ASSERT_EQ(good_crx, observer.last_extension_uninstalled);
  
    registry->RemoveObserver(&observer);
  }
  
  // Tests that flags passed to OnExternalExtensionFileFound() make it to the
  // extension object.
  TEST_F(ExtensionServiceTest, InstallingExternalExtensionWithFlags) {
    const char kPrefFromBookmark[] = "from_bookmark";
  
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    service()->set_extensions_enabled(true);
  
    // Register and install an external extension.
    std::unique_ptr<base::Version> version(new base::Version("1.0.0.0"));
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        good_crx, std::move(version), path, Manifest::EXTERNAL_PREF,
        Extension::FROM_BOOKMARK, false /* mark_acknowledged */,
        false /* install_immediately */));
    if (service()->OnExternalExtensionFileFound(*info))
      observer.Wait();
  
    const Extension* extension = service()->GetExtensionById(good_crx, false);
    ASSERT_TRUE(extension);
    ASSERT_TRUE(extension->from_bookmark());
    ASSERT_TRUE(ValidateBooleanPref(good_crx, kPrefFromBookmark, true));
  
    // Upgrade to version 2.0, the flag should be preserved.
    path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(good_crx, path, ENABLED);
    ASSERT_TRUE(ValidateBooleanPref(good_crx, kPrefFromBookmark, true));
    extension = service()->GetExtensionById(good_crx, false);
    ASSERT_TRUE(extension);
    ASSERT_TRUE(extension->from_bookmark());
  }
  
  // Test the handling of Extension::EXTERNAL_EXTENSION_UNINSTALLED
  TEST_F(ExtensionServiceTest, UninstallingExternalExtensions) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    service()->set_extensions_enabled(true);
  
    // Install an external extension.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    std::unique_ptr<base::Version> version(new base::Version("1.0.0.0"));
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        good_crx, std::move(version), path, Manifest::EXTERNAL_PREF,
        Extension::NO_FLAGS, false, false));
    if (service()->OnExternalExtensionFileFound(*info))
      observer.Wait();
  
    ASSERT_TRUE(service()->GetExtensionById(good_crx, false));
  
    // Uninstall it and check that its killbit gets set.
    UninstallExtension(good_crx, false);
    ValidateIntegerPref(good_crx, "state",
                        Extension::EXTERNAL_EXTENSION_UNINSTALLED);
  
    // Try to re-install it externally. This should fail because of the killbit.
    service()->OnExternalExtensionFileFound(*info);
    base::RunLoop().RunUntilIdle();
    ASSERT_TRUE(NULL == service()->GetExtensionById(good_crx, false));
    ValidateIntegerPref(good_crx, "state",
                        Extension::EXTERNAL_EXTENSION_UNINSTALLED);
  
    version.reset(new base::Version("1.0.0.1"));
    // Repeat the same thing with a newer version of the extension.
    path = data_dir().AppendASCII("good2.crx");
    info.reset(new ExternalInstallInfoFile(good_crx, std::move(version), path,
                                           Manifest::EXTERNAL_PREF,
                                           Extension::NO_FLAGS, false, false));
    service()->OnExternalExtensionFileFound(*info);
    base::RunLoop().RunUntilIdle();
    ASSERT_TRUE(NULL == service()->GetExtensionById(good_crx, false));
    ValidateIntegerPref(good_crx, "state",
                        Extension::EXTERNAL_EXTENSION_UNINSTALLED);
  
    // Try adding the same extension from an external update URL.
    ASSERT_FALSE(service()->pending_extension_manager()->AddFromExternalUpdateUrl(
        good_crx,
        std::string(),
        GURL("http:://fake.update/url"),
        Manifest::EXTERNAL_PREF_DOWNLOAD,
        Extension::NO_FLAGS,
        false));
  
    // Installation of the same extension through the policy should be successful.
    ASSERT_TRUE(service()->pending_extension_manager()->AddFromExternalUpdateUrl(
        good_crx,
        std::string(),
        GURL("http:://fake.update/url"),
        Manifest::EXTERNAL_POLICY_DOWNLOAD,
        Extension::NO_FLAGS,
        false));
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(good_crx));
    EXPECT_TRUE(service()->pending_extension_manager()->Remove(good_crx));
  
    ASSERT_FALSE(service()->pending_extension_manager()->IsIdPending(good_crx));
  }
  
  // Test that uninstalling an external extension does not crash when
  // the extension could not be loaded.
  // This extension shown in preferences file requires an experimental permission.
  // It could not be loaded without such permission.
  TEST_F(ExtensionServiceTest, UninstallingNotLoadedExtension) {
    base::FilePath source_install_dir =
        data_dir().AppendASCII("good").AppendASCII("Extensions");
    // The preference contains an external extension
    // that requires 'experimental' permission.
    base::FilePath pref_path = source_install_dir
        .DirName()
        .AppendASCII("PreferencesExperimental");
  
    // Aforementioned extension will not be loaded if
    // there is no '--enable-experimental-extension-apis' command line flag.
    InitializeInstalledExtensionService(pref_path, source_install_dir);
  
    service()->Init();
  
    // Check and try to uninstall it.
    // If we don't check whether the extension is loaded before we uninstall it
    // in CheckExternalUninstall, a crash will happen here because we will get or
    // dereference a NULL pointer (extension) inside UninstallExtension.
    MockExtensionProvider provider(NULL, Manifest::EXTERNAL_REGISTRY);
    service()->OnExternalProviderReady(&provider);
  }
  
  // Test that external extensions with incorrect IDs are not installed.
  TEST_F(ExtensionServiceTest, FailOnWrongId) {
    InitializeEmptyExtensionService();
    base::FilePath path = data_dir().AppendASCII("good.crx");
    service()->set_extensions_enabled(true);
  
    std::unique_ptr<base::Version> version(new base::Version("1.0.0.0"));
  
    const std::string wrong_id = all_zero;
    const std::string correct_id = good_crx;
    ASSERT_NE(correct_id, wrong_id);
  
    // Install an external extension with an ID from the external
    // source that is not equal to the ID in the extension manifest.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        wrong_id, std::move(version), path, Manifest::EXTERNAL_PREF,
        Extension::NO_FLAGS, false, false));
    service()->OnExternalExtensionFileFound(*info);
  
    observer.Wait();
    ASSERT_FALSE(service()->GetExtensionById(good_crx, false));
  
    // Try again with the right ID. Expect success.
    content::WindowedNotificationObserver observer2(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    info->extension_id = correct_id;
    if (service()->OnExternalExtensionFileFound(*info))
      observer2.Wait();
    ASSERT_TRUE(service()->GetExtensionById(good_crx, false));
  }
  
  // Test that external extensions with incorrect versions are not installed.
  TEST_F(ExtensionServiceTest, FailOnWrongVersion) {
    InitializeEmptyExtensionService();
    base::FilePath path = data_dir().AppendASCII("good.crx");
    service()->set_extensions_enabled(true);
  
    // Install an external extension with a version from the external
    // source that is not equal to the version in the extension manifest.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    std::unique_ptr<base::Version> wrong_version(new base::Version("1.2.3.4"));
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        good_crx, std::move(wrong_version), path, Manifest::EXTERNAL_PREF,
        Extension::NO_FLAGS, false, false));
    service()->OnExternalExtensionFileFound(*info);
  
    observer.Wait();
    ASSERT_FALSE(service()->GetExtensionById(good_crx, false));
  
    // Try again with the right version. Expect success.
    service()->pending_extension_manager()->Remove(good_crx);
    std::unique_ptr<base::Version> correct_version(new base::Version("1.0.0.0"));
    info->version = std::move(correct_version);
    content::WindowedNotificationObserver observer2(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    if (service()->OnExternalExtensionFileFound(*info))
      observer2.Wait();
    ASSERT_TRUE(service()->GetExtensionById(good_crx, false));
  }
  
  // Install a user script (they get converted automatically to an extension)
  TEST_F(ExtensionServiceTest, InstallUserScript) {
    // The details of script conversion are tested elsewhere, this just tests
    // integration with ExtensionService.
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("user_script_basic.user.js");
  
    ASSERT_TRUE(base::PathExists(path));
    scoped_refptr<CrxInstaller> installer(CrxInstaller::CreateSilent(service()));
    installer->set_allow_silent_install(true);
    installer->InstallUserScript(
        path,
        GURL("http://www.aaronboodman.com/scripts/user_script_basic.user.js"));
  
    base::RunLoop().RunUntilIdle();
    std::vector<base::string16> errors = GetErrors();
    EXPECT_TRUE(installed_) << "Nothing was installed.";
    EXPECT_FALSE(was_update_) << path.value();
    ASSERT_EQ(1u, loaded_.size()) << "Nothing was loaded.";
    EXPECT_EQ(0u, errors.size())
        << "There were errors: "
        << base::JoinString(errors, base::ASCIIToUTF16(","));
    EXPECT_TRUE(service()->GetExtensionById(loaded_[0]->id(), false))
        << path.value();
  
    installed_ = NULL;
    was_update_ = false;
    loaded_.clear();
    ExtensionErrorReporter::GetInstance()->ClearErrors();
  }
  
  // Extensions don't install during shutdown.
  TEST_F(ExtensionServiceTest, InstallExtensionDuringShutdown) {
    InitializeEmptyExtensionService();
  
    // Simulate shutdown.
    service()->set_browser_terminating_for_test(true);
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    scoped_refptr<CrxInstaller> installer(CrxInstaller::CreateSilent(service()));
    installer->set_allow_silent_install(true);
    installer->InstallCrx(path);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_FALSE(installed_) << "Extension installed during shutdown.";
    ASSERT_EQ(0u, loaded_.size()) << "Extension loaded during shutdown.";
  }
  
  // This tests that the granted permissions preferences are correctly set when
  // installing an extension.
  TEST_F(ExtensionServiceTest, GrantedPermissions) {
    InitializeEmptyExtensionService();
    base::FilePath path = data_dir().AppendASCII("permissions");
  
    base::FilePath pem_path = path.AppendASCII("unknown.pem");
    path = path.AppendASCII("unknown");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    APIPermissionSet expected_api_perms;
    URLPatternSet expected_host_perms;
  
    // Make sure there aren't any granted permissions before the
    // extension is installed.
    EXPECT_FALSE(prefs->GetGrantedPermissions(permissions_crx).get());
  
    const Extension* extension = PackAndInstallCRX(path, pem_path, INSTALL_NEW);
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(permissions_crx, extension->id());
  
    // Verify that the valid API permissions have been recognized.
    expected_api_perms.insert(APIPermission::kTab);
  
    AddPattern(&expected_host_perms, "http://*.google.com/*");
    AddPattern(&expected_host_perms, "https://*.google.com/*");
    AddPattern(&expected_host_perms, "http://*.google.com.hk/*");
    AddPattern(&expected_host_perms, "http://www.example.com/*");
  
    std::unique_ptr<const PermissionSet> known_perms =
        prefs->GetGrantedPermissions(extension->id());
    ASSERT_TRUE(known_perms.get());
    EXPECT_FALSE(known_perms->IsEmpty());
    EXPECT_EQ(expected_api_perms, known_perms->apis());
    EXPECT_FALSE(known_perms->HasEffectiveFullAccess());
    EXPECT_EQ(expected_host_perms, known_perms->effective_hosts());
  }
  
  // This tests that the granted permissions preferences are correctly set when
  // updating an extension, and the extension is disabled in case of a permission
  // escalation.
  TEST_F(ExtensionServiceTest, GrantedPermissionsOnUpdate) {
    InitializeEmptyExtensionService();
    const base::FilePath base_path = data_dir().AppendASCII("permissions");
  
    const base::FilePath pem_path = base_path.AppendASCII("update.pem");
    const base::FilePath path1 = base_path.AppendASCII("update_1");
    const base::FilePath path2 = base_path.AppendASCII("update_2");
    const base::FilePath path3 = base_path.AppendASCII("update_3");
    const base::FilePath path4 = base_path.AppendASCII("update_4");
    const base::FilePath path5 = base_path.AppendASCII("update_5");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path1));
    ASSERT_TRUE(base::PathExists(path2));
    ASSERT_TRUE(base::PathExists(path3));
    ASSERT_TRUE(base::PathExists(path4));
    ASSERT_TRUE(base::PathExists(path5));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    // Install version 1, which has the kHistory permission.
    const Extension* extension = PackAndInstallCRX(path1, pem_path, INSTALL_NEW);
    const std::string id = extension->id();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_TRUE(registry()->enabled_extensions().Contains(id));
  
    // Verify that the history permission has been recognized.
    APIPermissionSet expected_api_perms;
    expected_api_perms.insert(APIPermission::kHistory);
    {
      std::unique_ptr<const PermissionSet> known_perms =
          prefs->GetGrantedPermissions(id);
      ASSERT_TRUE(known_perms.get());
      EXPECT_EQ(expected_api_perms, known_perms->apis());
    }
  
    // Update to version 2 that adds the kTopSites permission, which has a
    // separate message, but is implied by kHistory. The extension should remain
    // enabled.
    PackCRXAndUpdateExtension(id, path2, pem_path, ENABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->enabled_extensions().Contains(id));
  
    // The extra permission should have been granted automatically.
    expected_api_perms.insert(APIPermission::kTopSites);
    {
      std::unique_ptr<const PermissionSet> known_perms =
          prefs->GetGrantedPermissions(id);
      ASSERT_TRUE(known_perms.get());
      EXPECT_EQ(expected_api_perms, known_perms->apis());
    }
  
    // Update to version 3 that adds the kStorage permission, which does not have
    // a message. The extension should remain enabled.
    PackCRXAndUpdateExtension(id, path3, pem_path, ENABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->enabled_extensions().Contains(id));
  
    // The extra permission should have been granted automatically.
    expected_api_perms.insert(APIPermission::kStorage);
    {
      std::unique_ptr<const PermissionSet> known_perms =
          prefs->GetGrantedPermissions(id);
      ASSERT_TRUE(known_perms.get());
      EXPECT_EQ(expected_api_perms, known_perms->apis());
    }
  
    // Update to version 4 that adds the kNotifications permission, which has a
    // message and hence is considered a permission increase. Now the extension
    // should get disabled.
    PackCRXAndUpdateExtension(id, path4, pem_path, DISABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
  
    // No new permissions should have been granted.
    {
      std::unique_ptr<const PermissionSet> known_perms =
          prefs->GetGrantedPermissions(id);
      ASSERT_TRUE(known_perms.get());
      EXPECT_EQ(expected_api_perms, known_perms->apis());
    }
  }
  
  TEST_F(ExtensionServiceTest, ReenableWithAllPermissionsGranted) {
    InitializeEmptyExtensionService();
    const base::FilePath base_path = data_dir().AppendASCII("permissions");
  
    const base::FilePath pem_path = base_path.AppendASCII("update.pem");
    const base::FilePath path1 = base_path.AppendASCII("update_1");
    const base::FilePath path4 = base_path.AppendASCII("update_4");
    const base::FilePath path5 = base_path.AppendASCII("update_5");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path1));
    ASSERT_TRUE(base::PathExists(path4));
    ASSERT_TRUE(base::PathExists(path5));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    // Install version 1, which has the kHistory permission.
    const Extension* extension = PackAndInstallCRX(path1, pem_path, INSTALL_NEW);
    const std::string id = extension->id();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_TRUE(registry()->enabled_extensions().Contains(id));
  
    // Update to version 4 that adds the kNotifications permission, which has a
    // message and hence is considered a permission increase. The extension
    // should get disabled due to a permissions increase.
    PackCRXAndUpdateExtension(id, path4, pem_path, DISABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(
        prefs->HasDisableReason(id, Extension::DISABLE_PERMISSIONS_INCREASE));
  
    // Update to version 5 that removes the kNotifications permission again.
    // The extension should get re-enabled.
    PackCRXAndUpdateExtension(id, path5, pem_path, ENABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->enabled_extensions().Contains(id));
  }
  
  TEST_F(ExtensionServiceTest, ReenableWithAllPermissionsGrantedOnStartup) {
    InitializeEmptyExtensionService();
    const base::FilePath base_path = data_dir().AppendASCII("permissions");
  
    const base::FilePath pem_path = base_path.AppendASCII("update.pem");
    const base::FilePath path1 = base_path.AppendASCII("update_1");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path1));
  
    // Install an extension which has the kHistory permission.
    const Extension* extension = PackAndInstallCRX(path1, pem_path, INSTALL_NEW);
    const std::string id = extension->id();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_TRUE(registry()->enabled_extensions().Contains(id));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    // Disable the extension due to a supposed permission increase, but retain its
    // granted permissions.
    service()->DisableExtension(id, Extension::DISABLE_PERMISSIONS_INCREASE);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(
        prefs->HasDisableReason(id, Extension::DISABLE_PERMISSIONS_INCREASE));
  
    // Simulate a Chrome restart. Since the extension has all required
    // permissions, it should get re-enabled.
    service()->ReloadExtensionsForTest();
    EXPECT_TRUE(registry()->enabled_extensions().Contains(id));
    EXPECT_FALSE(
        prefs->HasDisableReason(id, Extension::DISABLE_PERMISSIONS_INCREASE));
  }
  
  TEST_F(ExtensionServiceTest,
         DontReenableWithAllPermissionsGrantedButOtherReason) {
    InitializeEmptyExtensionService();
    const base::FilePath base_path = data_dir().AppendASCII("permissions");
  
    const base::FilePath pem_path = base_path.AppendASCII("update.pem");
    const base::FilePath path1 = base_path.AppendASCII("update_1");
    const base::FilePath path4 = base_path.AppendASCII("update_4");
    const base::FilePath path5 = base_path.AppendASCII("update_5");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path1));
    ASSERT_TRUE(base::PathExists(path4));
    ASSERT_TRUE(base::PathExists(path5));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    // Install version 1, which has the kHistory permission.
    const Extension* extension = PackAndInstallCRX(path1, pem_path, INSTALL_NEW);
    const std::string id = extension->id();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_TRUE(registry()->enabled_extensions().Contains(id));
  
    // Disable the extension.
    service()->DisableExtension(id, Extension::DISABLE_USER_ACTION);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(prefs->HasDisableReason(id, Extension::DISABLE_USER_ACTION));
  
    // Update to version 4 that adds the kNotifications permission, which has a
    // message and hence is considered a permission increase. The extension
    // should get disabled due to a permissions increase.
    PackCRXAndUpdateExtension(id, path4, pem_path, DISABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(
        prefs->HasDisableReason(id, Extension::DISABLE_PERMISSIONS_INCREASE));
    // The USER_ACTION reason should also still be there.
    EXPECT_TRUE(prefs->HasDisableReason(id, Extension::DISABLE_USER_ACTION));
  
    // Update to version 5 that removes the kNotifications permission again.
    // The PERMISSIONS_INCREASE should be removed, but the extension should stay
    // disabled since USER_ACTION is still there.
    PackCRXAndUpdateExtension(id, path5, pem_path, DISABLED);
    extension = service()->GetInstalledExtension(id);
    ASSERT_TRUE(extension);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_EQ(Extension::DISABLE_USER_ACTION, prefs->GetDisableReasons(id));
  }
  
  TEST_F(ExtensionServiceTest,
         DontReenableWithAllPermissionsGrantedOnStartupButOtherReason) {
    InitializeEmptyExtensionService();
    const base::FilePath base_path = data_dir().AppendASCII("permissions");
  
    const base::FilePath pem_path = base_path.AppendASCII("update.pem");
    const base::FilePath path1 = base_path.AppendASCII("update_1");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path1));
  
    // Install an extension which has the kHistory permission.
    const Extension* extension = PackAndInstallCRX(path1, pem_path, INSTALL_NEW);
    const std::string id = extension->id();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_TRUE(registry()->enabled_extensions().Contains(id));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    // Disable the extension due to a supposed permission increase, but retain its
    // granted permissions.
    service()->DisableExtension(
        id,
        Extension::DISABLE_PERMISSIONS_INCREASE | Extension::DISABLE_USER_ACTION);
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(
        prefs->HasDisableReason(id, Extension::DISABLE_PERMISSIONS_INCREASE));
  
    // Simulate a Chrome restart. Since the extension has all required
    // permissions, the DISABLE_PERMISSIONS_INCREASE should get removed, but it
    // should stay disabled due to the remaining DISABLE_USER_ACTION reason.
    service()->ReloadExtensionsForTest();
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_EQ(Extension::DISABLE_USER_ACTION, prefs->GetDisableReasons(id));
  }
  
  #if !defined(OS_CHROMEOS)
  // This tests that the granted permissions preferences are correctly set for
  // default apps.
  TEST_F(ExtensionServiceTest, DefaultAppsGrantedPermissions) {
    InitializeEmptyExtensionService();
    base::FilePath path = data_dir().AppendASCII("permissions");
  
    base::FilePath pem_path = path.AppendASCII("unknown.pem");
    path = path.AppendASCII("unknown");
  
    ASSERT_TRUE(base::PathExists(pem_path));
    ASSERT_TRUE(base::PathExists(path));
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    APIPermissionSet expected_api_perms;
    URLPatternSet expected_host_perms;
  
    // Make sure there aren't any granted permissions before the
    // extension is installed.
    EXPECT_FALSE(prefs->GetGrantedPermissions(permissions_crx).get());
  
    const Extension* extension = PackAndInstallCRX(
        path, pem_path, INSTALL_NEW, Extension::WAS_INSTALLED_BY_DEFAULT,
        Manifest::Location::INTERNAL);
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(permissions_crx, extension->id());
  
    // Verify that the valid API permissions have been recognized.
    expected_api_perms.insert(APIPermission::kTab);
  
    std::unique_ptr<const PermissionSet> known_perms =
        prefs->GetGrantedPermissions(extension->id());
    EXPECT_TRUE(known_perms.get());
    EXPECT_FALSE(known_perms->IsEmpty());
    EXPECT_EQ(expected_api_perms, known_perms->apis());
    EXPECT_FALSE(known_perms->HasEffectiveFullAccess());
  }
  #endif
  
  #if !defined(OS_POSIX) || defined(OS_MACOSX)
  // Tests that the granted permissions full_access bit gets set correctly when
  // an extension contains an NPAPI plugin.
  // Only run this on platforms that support NPAPI plugins.
  TEST_F(ExtensionServiceTest, GrantedFullAccessPermissions) {
    InitPluginService();
  
    InitializeEmptyExtensionService();
  
    ASSERT_TRUE(base::PathExists(good1_path()));
    const Extension* extension = PackAndInstallCRX(good1_path(), INSTALL_NEW);
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    std::unique_ptr<const PermissionSet> permissions =
        prefs->GetGrantedPermissions(extension->id());
    EXPECT_FALSE(permissions->IsEmpty());
    EXPECT_TRUE(permissions->HasEffectiveFullAccess());
    EXPECT_FALSE(permissions->apis().empty());
    EXPECT_TRUE(permissions->HasAPIPermission(APIPermission::kPlugin));
  
    // Full access implies full host access too...
    EXPECT_TRUE(permissions->HasEffectiveAccessToAllHosts());
  }
  #endif
  
  // Tests that the extension is disabled when permissions are missing from
  // the extension's granted permissions preferences. (This simulates updating
  // the browser to a version which recognizes more permissions).
  TEST_F(ExtensionServiceTest, GrantedAPIAndHostPermissions) {
    InitializeEmptyExtensionService();
  
    base::FilePath path =
        data_dir().AppendASCII("permissions").AppendASCII("unknown");
  
    ASSERT_TRUE(base::PathExists(path));
  
    const Extension* extension = PackAndInstallCRX(path, INSTALL_NEW);
  
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    std::string extension_id = extension->id();
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
  
    APIPermissionSet expected_api_permissions;
    URLPatternSet expected_host_permissions;
  
    expected_api_permissions.insert(APIPermission::kTab);
    AddPattern(&expected_host_permissions, "http://*.google.com/*");
    AddPattern(&expected_host_permissions, "https://*.google.com/*");
    AddPattern(&expected_host_permissions, "http://*.google.com.hk/*");
    AddPattern(&expected_host_permissions, "http://www.example.com/*");
  
    std::set<std::string> host_permissions;
  
    // Test that the extension is disabled when an API permission is missing from
    // the extension's granted api permissions preference. (This simulates
    // updating the browser to a version which recognizes a new API permission).
    SetPref(extension_id, "granted_permissions.api",
            new base::ListValue(), "granted_permissions.api");
    service()->ReloadExtensionsForTest();
  
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
    extension = registry()->disabled_extensions().begin()->get();
  
    ASSERT_TRUE(prefs->IsExtensionDisabled(extension_id));
    ASSERT_FALSE(service()->IsExtensionEnabled(extension_id));
    ASSERT_TRUE(prefs->DidExtensionEscalatePermissions(extension_id));
  
    // Now grant and re-enable the extension, making sure the prefs are updated.
    service()->GrantPermissionsAndEnableExtension(extension);
  
    ASSERT_FALSE(prefs->IsExtensionDisabled(extension_id));
    ASSERT_TRUE(service()->IsExtensionEnabled(extension_id));
    ASSERT_FALSE(prefs->DidExtensionEscalatePermissions(extension_id));
  
    std::unique_ptr<const PermissionSet> current_perms =
        prefs->GetGrantedPermissions(extension_id);
    ASSERT_TRUE(current_perms.get());
    ASSERT_FALSE(current_perms->IsEmpty());
    ASSERT_FALSE(current_perms->HasEffectiveFullAccess());
    ASSERT_EQ(expected_api_permissions, current_perms->apis());
    ASSERT_EQ(expected_host_permissions, current_perms->effective_hosts());
  
    // Tests that the extension is disabled when a host permission is missing from
    // the extension's granted host permissions preference. (This simulates
    // updating the browser to a version which recognizes additional host
    // permissions).
    host_permissions.clear();
    current_perms = NULL;
  
    host_permissions.insert("http://*.google.com/*");
    host_permissions.insert("https://*.google.com/*");
    host_permissions.insert("http://*.google.com.hk/*");
  
    base::ListValue* api_permissions = new base::ListValue();
    api_permissions->AppendString("tabs");
    SetPref(extension_id, "granted_permissions.api",
            api_permissions, "granted_permissions.api");
    SetPrefStringSet(
        extension_id, "granted_permissions.scriptable_host", host_permissions);
  
    service()->ReloadExtensionsForTest();
  
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
    extension = registry()->disabled_extensions().begin()->get();
  
    ASSERT_TRUE(prefs->IsExtensionDisabled(extension_id));
    ASSERT_FALSE(service()->IsExtensionEnabled(extension_id));
    ASSERT_TRUE(prefs->DidExtensionEscalatePermissions(extension_id));
  
    // Now grant and re-enable the extension, making sure the prefs are updated.
    service()->GrantPermissionsAndEnableExtension(extension);
  
    ASSERT_TRUE(service()->IsExtensionEnabled(extension_id));
    ASSERT_FALSE(prefs->DidExtensionEscalatePermissions(extension_id));
  
    current_perms = prefs->GetGrantedPermissions(extension_id);
    ASSERT_TRUE(current_perms.get());
    ASSERT_FALSE(current_perms->IsEmpty());
    ASSERT_FALSE(current_perms->HasEffectiveFullAccess());
    ASSERT_EQ(expected_api_permissions, current_perms->apis());
    ASSERT_EQ(expected_host_permissions, current_perms->effective_hosts());
  }
  
  // Test Packaging and installing an extension.
  TEST_F(ExtensionServiceTest, PackExtension) {
    InitializeEmptyExtensionService();
    base::FilePath input_directory =
        data_dir()
            .AppendASCII("good")
            .AppendASCII("Extensions")
            .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
            .AppendASCII("1.0.0.0");
  
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
    base::FilePath output_directory = temp_dir.GetPath();
  
    base::FilePath crx_path(output_directory.AppendASCII("ex1.crx"));
    base::FilePath privkey_path(output_directory.AppendASCII("privkey.pem"));
  
    std::unique_ptr<ExtensionCreator> creator(new ExtensionCreator());
    ASSERT_TRUE(creator->Run(input_directory, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kNoRunFlags));
    ASSERT_TRUE(base::PathExists(crx_path));
    ASSERT_TRUE(base::PathExists(privkey_path));
  
    // Repeat the run with the pem file gone, and no special flags
    // Should refuse to overwrite the existing crx.
    base::DeleteFile(privkey_path, false);
    ASSERT_FALSE(creator->Run(input_directory, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kNoRunFlags));
  
    // OK, now try it with a flag to overwrite existing crx.  Should work.
    ASSERT_TRUE(creator->Run(input_directory, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kOverwriteCRX));
  
    // Repeat the run allowing existing crx, but the existing pem is still
    // an error.  Should fail.
    ASSERT_FALSE(creator->Run(input_directory, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kOverwriteCRX));
  
    ASSERT_TRUE(base::PathExists(privkey_path));
    InstallCRX(crx_path, INSTALL_NEW);
  
    // Try packing with invalid paths.
    creator.reset(new ExtensionCreator());
    ASSERT_FALSE(
        creator->Run(base::FilePath(), base::FilePath(), base::FilePath(),
                     base::FilePath(), ExtensionCreator::kOverwriteCRX));
  
    // Try packing an empty directory. Should fail because an empty directory is
    // not a valid extension.
    base::ScopedTempDir temp_dir2;
    ASSERT_TRUE(temp_dir2.CreateUniqueTempDir());
    creator.reset(new ExtensionCreator());
    ASSERT_FALSE(creator->Run(temp_dir2.GetPath(), crx_path, privkey_path,
                              base::FilePath(), ExtensionCreator::kOverwriteCRX));
  
    // Try packing with an invalid manifest.
    std::string invalid_manifest_content = "I am not a manifest.";
    ASSERT_TRUE(base::WriteFile(
        temp_dir2.GetPath().Append(extensions::kManifestFilename),
        invalid_manifest_content.c_str(), invalid_manifest_content.size()));
    creator.reset(new ExtensionCreator());
    ASSERT_FALSE(creator->Run(temp_dir2.GetPath(), crx_path, privkey_path,
                              base::FilePath(), ExtensionCreator::kOverwriteCRX));
  
    // Try packing with a private key that is a valid key, but invalid for the
    // extension.
    base::FilePath bad_private_key_dir =
        data_dir().AppendASCII("bad_private_key");
    crx_path = output_directory.AppendASCII("bad_private_key.crx");
    privkey_path = data_dir().AppendASCII("bad_private_key.pem");
    ASSERT_FALSE(creator->Run(bad_private_key_dir, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kOverwriteCRX));
  }
  
  // Test Packaging and installing an extension whose name contains punctuation.
  TEST_F(ExtensionServiceTest, PackPunctuatedExtension) {
    InitializeEmptyExtensionService();
    base::FilePath input_directory = data_dir()
                                         .AppendASCII("good")
                                         .AppendASCII("Extensions")
                                         .AppendASCII(good0)
                                         .AppendASCII("1.0.0.0");
  
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
  
    // Extension names containing punctuation, and the expected names for the
    // packed extensions.
    const base::FilePath punctuated_names[] = {
      base::FilePath(FILE_PATH_LITERAL("this.extensions.name.has.periods")),
      base::FilePath(FILE_PATH_LITERAL(".thisextensionsnamestartswithaperiod")),
      base::FilePath(FILE_PATH_LITERAL("thisextensionhasaslashinitsname/")).
          NormalizePathSeparators(),
    };
    const base::FilePath expected_crx_names[] = {
      base::FilePath(FILE_PATH_LITERAL("this.extensions.name.has.periods.crx")),
      base::FilePath(
          FILE_PATH_LITERAL(".thisextensionsnamestartswithaperiod.crx")),
      base::FilePath(FILE_PATH_LITERAL("thisextensionhasaslashinitsname.crx")),
    };
    const base::FilePath expected_private_key_names[] = {
      base::FilePath(FILE_PATH_LITERAL("this.extensions.name.has.periods.pem")),
      base::FilePath(
          FILE_PATH_LITERAL(".thisextensionsnamestartswithaperiod.pem")),
      base::FilePath(FILE_PATH_LITERAL("thisextensionhasaslashinitsname.pem")),
    };
  
    for (size_t i = 0; i < arraysize(punctuated_names); ++i) {
      SCOPED_TRACE(punctuated_names[i].value().c_str());
      base::FilePath output_dir = temp_dir.GetPath().Append(punctuated_names[i]);
  
      // Copy the extension into the output directory, as PackExtensionJob doesn't
      // let us choose where to output the packed extension.
      ASSERT_TRUE(base::CopyDirectory(input_directory, output_dir, true));
  
      base::FilePath expected_crx_path =
          temp_dir.GetPath().Append(expected_crx_names[i]);
      base::FilePath expected_private_key_path =
          temp_dir.GetPath().Append(expected_private_key_names[i]);
      PackExtensionTestClient pack_client(expected_crx_path,
                                          expected_private_key_path);
      scoped_refptr<extensions::PackExtensionJob> packer(
          new extensions::PackExtensionJob(&pack_client, output_dir,
                                           base::FilePath(),
                                           ExtensionCreator::kOverwriteCRX));
      packer->Start();
  
      // The packer will post a notification task to the current thread's message
      // loop when it is finished.  We manually run the loop here so that we
      // block and catch the notification; otherwise, the process would exit.
      // This call to |Run()| is matched by a call to |Quit()| in the
      // |PackExtensionTestClient|'s notification handling code.
      base::RunLoop().Run();
  
      if (HasFatalFailure())
        return;
  
      InstallCRX(expected_crx_path, INSTALL_NEW);
    }
  }
  
  TEST_F(ExtensionServiceTest, PackExtensionContainingKeyFails) {
    InitializeEmptyExtensionService();
  
    base::ScopedTempDir extension_temp_dir;
    ASSERT_TRUE(extension_temp_dir.CreateUniqueTempDir());
    base::FilePath input_directory =
        extension_temp_dir.GetPath().AppendASCII("ext");
    ASSERT_TRUE(
        base::CopyDirectory(data_dir()
                                .AppendASCII("good")
                                .AppendASCII("Extensions")
                                .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
                                .AppendASCII("1.0.0.0"),
                            input_directory,
                            /*recursive=*/true));
  
    base::ScopedTempDir output_temp_dir;
    ASSERT_TRUE(output_temp_dir.CreateUniqueTempDir());
    base::FilePath output_directory = output_temp_dir.GetPath();
  
    base::FilePath crx_path(output_directory.AppendASCII("ex1.crx"));
    base::FilePath privkey_path(output_directory.AppendASCII("privkey.pem"));
  
    // Pack the extension once to get a private key.
    std::unique_ptr<ExtensionCreator> creator(new ExtensionCreator());
    ASSERT_TRUE(creator->Run(input_directory, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kNoRunFlags))
        << creator->error_message();
    ASSERT_TRUE(base::PathExists(crx_path));
    ASSERT_TRUE(base::PathExists(privkey_path));
  
    base::DeleteFile(crx_path, false);
    // Move the pem file into the extension.
    base::Move(privkey_path,
                    input_directory.AppendASCII("privkey.pem"));
  
    // This pack should fail because of the contained private key.
    EXPECT_FALSE(creator->Run(input_directory, crx_path, base::FilePath(),
        privkey_path, ExtensionCreator::kNoRunFlags));
    EXPECT_THAT(creator->error_message(),
                testing::ContainsRegex(
                    "extension includes the key file.*privkey.pem"));
  }
  
  // Test Packaging and installing an extension using an openssl generated key.
  // The openssl is generated with the following:
  // > openssl genrsa -out privkey.pem 1024
  // > openssl pkcs8 -topk8 -nocrypt -in privkey.pem -out privkey_asn1.pem
  // The privkey.pem is a PrivateKey, and the pcks8 -topk8 creates a
  // PrivateKeyInfo ASN.1 structure, we our RSAPrivateKey expects.
  TEST_F(ExtensionServiceTest, PackExtensionOpenSSLKey) {
    InitializeEmptyExtensionService();
    base::FilePath input_directory =
        data_dir()
            .AppendASCII("good")
            .AppendASCII("Extensions")
            .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
            .AppendASCII("1.0.0.0");
    base::FilePath privkey_path(
        data_dir().AppendASCII("openssl_privkey_asn1.pem"));
    ASSERT_TRUE(base::PathExists(privkey_path));
  
    base::ScopedTempDir temp_dir;
    ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
    base::FilePath output_directory = temp_dir.GetPath();
  
    base::FilePath crx_path(output_directory.AppendASCII("ex1.crx"));
  
    std::unique_ptr<ExtensionCreator> creator(new ExtensionCreator());
    ASSERT_TRUE(creator->Run(input_directory, crx_path, privkey_path,
        base::FilePath(), ExtensionCreator::kOverwriteCRX));
  
    InstallCRX(crx_path, INSTALL_NEW);
  }
  
  #if defined(THREAD_SANITIZER)
  // Flaky under Tsan. http://crbug.com/377702
  #define MAYBE_InstallTheme DISABLED_InstallTheme
  #else
  #define MAYBE_InstallTheme InstallTheme
  #endif
  
  TEST_F(ExtensionServiceTest, MAYBE_InstallTheme) {
    InitializeEmptyExtensionService();
    service()->Init();
  
    // A theme.
    base::FilePath path = data_dir().AppendASCII("theme.crx");
    InstallCRX(path, INSTALL_NEW);
    int pref_count = 0;
    ValidatePrefKeyCount(++pref_count);
    ValidateIntegerPref(theme_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(theme_crx, "location", Manifest::INTERNAL);
  
    // A theme when extensions are disabled. Themes can be installed, even when
    // extensions are disabled.
    service()->set_extensions_enabled(false);
    path = data_dir().AppendASCII("theme2.crx");
    InstallCRX(path, INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ValidateIntegerPref(theme2_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(theme2_crx, "location", Manifest::INTERNAL);
  
    // A theme with extension elements. Themes cannot have extension elements,
    // so any such elements (like content scripts) should be ignored.
    service()->set_extensions_enabled(true);
    {
      path = data_dir().AppendASCII("theme_with_extension.crx");
      const Extension* extension = InstallCRX(path, INSTALL_NEW);
      ValidatePrefKeyCount(++pref_count);
      ASSERT_TRUE(extension);
      EXPECT_TRUE(extension->is_theme());
      EXPECT_TRUE(
          extensions::ContentScriptsInfo::GetContentScripts(extension).empty());
    }
  
    // A theme with image resources missing (misspelt path).
    path = data_dir().AppendASCII("theme_missing_image.crx");
    InstallCRX(path, INSTALL_FAILED);
    ValidatePrefKeyCount(pref_count);
  }
  
  TEST_F(ExtensionServiceTest, LoadLocalizedTheme) {
    // Load.
    InitializeEmptyExtensionService();
    service()->Init();
  
    base::FilePath extension_path = data_dir().AppendASCII("theme_i18n");
  
    extensions::UnpackedInstaller::Create(service())->Load(extension_path);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    const Extension* theme = registry()->enabled_extensions().begin()->get();
    EXPECT_EQ("name", theme->name());
    EXPECT_EQ("description", theme->description());
  
    // Cleanup the "Cached Theme.pak" file. Ideally, this would be installed in a
    // temporary directory, but it automatically installs to the extension's
    // directory, and we don't want to copy the whole extension for a unittest.
    base::FilePath theme_file = extension_path.Append(chrome::kThemePackFilename);
    ASSERT_TRUE(base::PathExists(theme_file));
    ASSERT_TRUE(base::DeleteFile(theme_file, false));  // Not recursive.
  }
  
  #if defined(OS_POSIX)
  TEST_F(ExtensionServiceTest, UnpackedExtensionMayContainSymlinkedFiles) {
    base::FilePath source_data_dir =
        data_dir().AppendASCII("unpacked").AppendASCII("symlinks_allowed");
  
    // Paths to test data files.
    base::FilePath source_manifest = source_data_dir.AppendASCII("manifest.json");
    ASSERT_TRUE(base::PathExists(source_manifest));
    base::FilePath source_icon = source_data_dir.AppendASCII("icon.png");
    ASSERT_TRUE(base::PathExists(source_icon));
  
    // Set up the temporary extension directory.
    base::ScopedTempDir temp;
    ASSERT_TRUE(temp.CreateUniqueTempDir());
    base::FilePath extension_path = temp.GetPath();
    base::FilePath manifest = extension_path.Append(
        extensions::kManifestFilename);
    base::FilePath icon_symlink = extension_path.AppendASCII("icon.png");
    base::CopyFile(source_manifest, manifest);
    base::CreateSymbolicLink(source_icon, icon_symlink);
  
    // Load extension.
    InitializeEmptyExtensionService();
    extensions::UnpackedInstaller::Create(service())->Load(extension_path);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_TRUE(GetErrors().empty());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  }
  #endif
  
  TEST_F(ExtensionServiceTest, UnpackedExtensionMayNotHaveUnderscore) {
    InitializeEmptyExtensionService();
    base::FilePath extension_path = data_dir().AppendASCII("underscore_name");
    extensions::UnpackedInstaller::Create(service())->Load(extension_path);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1u, GetErrors().size());
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  
  TEST_F(ExtensionServiceTest, InstallLocalizedTheme) {
    InitializeEmptyExtensionService();
    service()->Init();
  
    base::FilePath theme_path = data_dir().AppendASCII("theme_i18n");
  
    const Extension* theme = PackAndInstallCRX(theme_path, INSTALL_NEW);
  
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ("name", theme->name());
    EXPECT_EQ("description", theme->description());
  }
  
  TEST_F(ExtensionServiceTest, InstallApps) {
    InitializeEmptyExtensionService();
  
    // An empty app.
    const Extension* app =
        PackAndInstallCRX(data_dir().AppendASCII("app1"), INSTALL_NEW);
    int pref_count = 0;
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    ValidateIntegerPref(app->id(), "state", Extension::ENABLED);
    ValidateIntegerPref(app->id(), "location", Manifest::INTERNAL);
  
    // Another app with non-overlapping extent. Should succeed.
    PackAndInstallCRX(data_dir().AppendASCII("app2"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
  
    // A third app whose extent overlaps the first. Should fail.
    PackAndInstallCRX(data_dir().AppendASCII("app3"), INSTALL_FAILED);
    ValidatePrefKeyCount(pref_count);
  }
  
  // Tests that file access is OFF by default.
  TEST_F(ExtensionServiceTest, DefaultFileAccess) {
    InitializeEmptyExtensionService();
    const Extension* extension = PackAndInstallCRX(
        data_dir().AppendASCII("permissions").AppendASCII("files"), INSTALL_NEW);
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_FALSE(
        ExtensionPrefs::Get(profile())->AllowFileAccess(extension->id()));
  }
  
  TEST_F(ExtensionServiceTest, UpdateApps) {
    InitializeEmptyExtensionService();
    base::FilePath extensions_path = data_dir().AppendASCII("app_update");
  
    // First install v1 of a hosted app.
    const Extension* extension =
        InstallCRX(extensions_path.AppendASCII("v1.crx"), INSTALL_NEW);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    std::string id = extension->id();
    ASSERT_EQ(std::string("1"), extension->version()->GetString());
  
    // Now try updating to v2.
    UpdateExtension(id,
                    extensions_path.AppendASCII("v2.crx"),
                    ENABLED);
    ASSERT_EQ(std::string("2"),
              service()->GetExtensionById(id, false)->version()->GetString());
  }
  
  // Verifies that the NTP page and launch ordinals are kept when updating apps.
  TEST_F(ExtensionServiceTest, UpdateAppsRetainOrdinals) {
    InitializeEmptyExtensionService();
    AppSorting* sorting = ExtensionSystem::Get(profile())->app_sorting();
    base::FilePath extensions_path = data_dir().AppendASCII("app_update");
  
    // First install v1 of a hosted app.
    const Extension* extension =
        InstallCRX(extensions_path.AppendASCII("v1.crx"), INSTALL_NEW);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    std::string id = extension->id();
    ASSERT_EQ(std::string("1"), extension->version()->GetString());
  
    // Modify the ordinals so we can distinguish them from the defaults.
    syncer::StringOrdinal new_page_ordinal =
        sorting->GetPageOrdinal(id).CreateAfter();
    syncer::StringOrdinal new_launch_ordinal =
        sorting->GetAppLaunchOrdinal(id).CreateBefore();
  
    sorting->SetPageOrdinal(id, new_page_ordinal);
    sorting->SetAppLaunchOrdinal(id, new_launch_ordinal);
  
    // Now try updating to v2.
    UpdateExtension(id, extensions_path.AppendASCII("v2.crx"), ENABLED);
    ASSERT_EQ(std::string("2"),
              service()->GetExtensionById(id, false)->version()->GetString());
  
    // Verify that the ordinals match.
    ASSERT_TRUE(new_page_ordinal.Equals(sorting->GetPageOrdinal(id)));
    ASSERT_TRUE(new_launch_ordinal.Equals(sorting->GetAppLaunchOrdinal(id)));
  }
  
  // Ensures that the CWS has properly initialized ordinals.
  TEST_F(ExtensionServiceTest, EnsureCWSOrdinalsInitialized) {
    InitializeEmptyExtensionService();
    service()->component_loader()->Add(
        IDR_WEBSTORE_MANIFEST, base::FilePath(FILE_PATH_LITERAL("web_store")));
    service()->Init();
  
    AppSorting* sorting = ExtensionSystem::Get(profile())->app_sorting();
    EXPECT_TRUE(
        sorting->GetPageOrdinal(extensions::kWebStoreAppId).IsValid());
    EXPECT_TRUE(
        sorting->GetAppLaunchOrdinal(extensions::kWebStoreAppId).IsValid());
  }
  
  TEST_F(ExtensionServiceTest, InstallAppsWithUnlimitedStorage) {
    InitializeEmptyExtensionService();
    EXPECT_TRUE(registry()->enabled_extensions().is_empty());
  
    int pref_count = 0;
  
    // Install app1 with unlimited storage.
    const Extension* extension =
        PackAndInstallCRX(data_dir().AppendASCII("app1"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    const std::string id1 = extension->id();
    EXPECT_TRUE(extension->permissions_data()->HasAPIPermission(
        APIPermission::kUnlimitedStorage));
    EXPECT_TRUE(extension->web_extent().MatchesURL(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension)));
    const GURL origin1(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension).GetOrigin());
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        origin1));
  
    // Install app2 from the same origin with unlimited storage.
    extension = PackAndInstallCRX(data_dir().AppendASCII("app2"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(2u, registry()->enabled_extensions().size());
    const std::string id2 = extension->id();
    EXPECT_TRUE(extension->permissions_data()->HasAPIPermission(
        APIPermission::kUnlimitedStorage));
    EXPECT_TRUE(extension->web_extent().MatchesURL(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension)));
    const GURL origin2(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension).GetOrigin());
    EXPECT_EQ(origin1, origin2);
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        origin2));
  
    // Uninstall one of them, unlimited storage should still be granted
    // to the origin.
    UninstallExtension(id1, false);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        origin1));
  
    // Uninstall the other, unlimited storage should be revoked.
    UninstallExtension(id2, false);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_FALSE(
        profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
            origin2));
  }
  
  TEST_F(ExtensionServiceTest, InstallAppsAndCheckStorageProtection) {
    InitializeEmptyExtensionService();
    EXPECT_TRUE(registry()->enabled_extensions().is_empty());
  
    int pref_count = 0;
  
    const Extension* extension =
        PackAndInstallCRX(data_dir().AppendASCII("app1"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(extension->is_app());
    const std::string id1 = extension->id();
    const GURL origin1(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension).GetOrigin());
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageProtected(
        origin1));
  
    // App 4 has a different origin (maps.google.com).
    extension = PackAndInstallCRX(data_dir().AppendASCII("app4"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(2u, registry()->enabled_extensions().size());
    const std::string id2 = extension->id();
    const GURL origin2(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension).GetOrigin());
    ASSERT_NE(origin1, origin2);
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageProtected(
        origin2));
  
    UninstallExtension(id1, false);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    UninstallExtension(id2, false);
  
    EXPECT_TRUE(registry()->enabled_extensions().is_empty());
    EXPECT_FALSE(
        profile()->GetExtensionSpecialStoragePolicy()->IsStorageProtected(
            origin1));
    EXPECT_FALSE(
        profile()->GetExtensionSpecialStoragePolicy()->IsStorageProtected(
            origin2));
  }
  
  // Test that when an extension version is reinstalled, nothing happens.
  TEST_F(ExtensionServiceTest, Reinstall) {
    InitializeEmptyExtensionService();
  
    // A simple extension that should install without error.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
  
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", Manifest::INTERNAL);
  
    // Reinstall the same version, it should overwrite the previous one.
    InstallCRX(path, INSTALL_UPDATED);
  
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", Manifest::INTERNAL);
  }
  
  // Test that we can determine if extensions came from the
  // Chrome web store.
  TEST_F(ExtensionServiceTest, FromWebStore) {
    InitializeEmptyExtensionService();
  
    // A simple extension that should install without error.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    // Not from web store.
    const Extension* extension = InstallCRX(path, INSTALL_NEW);
    std::string id = extension->id();
  
    ValidatePrefKeyCount(1);
    ASSERT_TRUE(ValidateBooleanPref(good_crx, "from_webstore", false));
    ASSERT_FALSE(extension->from_webstore());
  
    // Test install from web store.
    InstallCRXFromWebStore(path, INSTALL_UPDATED);  // From web store.
  
    ValidatePrefKeyCount(1);
    ASSERT_TRUE(ValidateBooleanPref(good_crx, "from_webstore", true));
  
    // Reload so extension gets reinitialized with new value.
    service()->ReloadExtensionsForTest();
    extension = service()->GetExtensionById(id, false);
    ASSERT_TRUE(extension->from_webstore());
  
    // Upgrade to version 2.0
    path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(good_crx, path, ENABLED);
    ValidatePrefKeyCount(1);
    ASSERT_TRUE(ValidateBooleanPref(good_crx, "from_webstore", true));
  }
  
  // Test upgrading a signed extension.
  TEST_F(ExtensionServiceTest, UpgradeSignedGood) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    const Extension* extension = InstallCRX(path, INSTALL_NEW);
    std::string id = extension->id();
  
    ASSERT_EQ("1.0.0.0", extension->version()->GetString());
    ASSERT_EQ(0u, GetErrors().size());
  
    // Upgrade to version 1.0.0.1.
    // Also test that the extension's old and new title are correctly retrieved.
    path = data_dir().AppendASCII("good2.crx");
    InstallCRX(path, INSTALL_UPDATED, Extension::NO_FLAGS, "My extension 1");
    extension = service()->GetExtensionById(id, false);
  
    ASSERT_EQ("1.0.0.1", extension->version()->GetString());
    ASSERT_EQ("My updated extension 1", extension->name());
    ASSERT_EQ(0u, GetErrors().size());
  }
  
  // Test upgrading a signed extension with a bad signature.
  TEST_F(ExtensionServiceTest, UpgradeSignedBad) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
  
    // Try upgrading with a bad signature. This should fail during the unpack,
    // because the key will not match the signature.
    path = data_dir().AppendASCII("bad_signature.crx");
    InstallCRX(path, INSTALL_FAILED);
  }
  
  // Test a normal update via the UpdateExtension API
  TEST_F(ExtensionServiceTest, UpdateExtension) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
  
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ("1.0.0.0", good->VersionString());
    ASSERT_EQ(good_crx, good->id());
  
    path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(good_crx, path, ENABLED);
    ASSERT_EQ(
        "1.0.0.1",
        service()->GetExtensionById(good_crx, false)->version()->GetString());
  }
  
  // Extensions should not be updated during browser shutdown.
  TEST_F(ExtensionServiceTest, UpdateExtensionDuringShutdown) {
    InitializeEmptyExtensionService();
  
    // Install an extension.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ(good_crx, good->id());
  
    // Simulate shutdown.
    service()->set_browser_terminating_for_test(true);
  
    // Update should fail and extension should not be updated.
    path = data_dir().AppendASCII("good2.crx");
    bool updated = service()->UpdateExtension(
        extensions::CRXFileInfo(good_crx, path), true, NULL);
    ASSERT_FALSE(updated);
    ASSERT_EQ(
        "1.0.0.0",
        service()->GetExtensionById(good_crx, false)->version()->GetString());
  }
  
  // Test updating a not-already-installed extension - this should fail
  TEST_F(ExtensionServiceTest, UpdateNotInstalledExtension) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    UpdateExtension(good_crx, path, UPDATED);
    base::RunLoop().RunUntilIdle();
  
    ASSERT_EQ(0u, registry()->enabled_extensions().size());
    ASSERT_FALSE(installed_);
    ASSERT_EQ(0u, loaded_.size());
  }
  
  // Makes sure you can't downgrade an extension via UpdateExtension
  TEST_F(ExtensionServiceTest, UpdateWillNotDowngrade) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good2.crx");
  
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ("1.0.0.1", good->VersionString());
    ASSERT_EQ(good_crx, good->id());
  
    // Change path from good2.crx -> good.crx
    path = data_dir().AppendASCII("good.crx");
    UpdateExtension(good_crx, path, FAILED);
    ASSERT_EQ(
        "1.0.0.1",
        service()->GetExtensionById(good_crx, false)->version()->GetString());
  }
  
  // Make sure calling update with an identical version does nothing
  TEST_F(ExtensionServiceTest, UpdateToSameVersionIsNoop) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
  
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ(good_crx, good->id());
    UpdateExtension(good_crx, path, FAILED_SILENTLY);
  }
  
  // Tests that updating an extension does not clobber old state.
  TEST_F(ExtensionServiceTest, UpdateExtensionPreservesState) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
  
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ("1.0.0.0", good->VersionString());
    ASSERT_EQ(good_crx, good->id());
  
    // Disable it and allow it to run in incognito. These settings should carry
    // over to the updated version.
    service()->DisableExtension(good->id(), Extension::DISABLE_USER_ACTION);
    extensions::util::SetIsIncognitoEnabled(good->id(), profile(), true);
  
    path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(good_crx, path, INSTALLED);
    ASSERT_EQ(1u, registry()->disabled_extensions().size());
    const Extension* good2 = service()->GetExtensionById(good_crx, true);
    ASSERT_EQ("1.0.0.1", good2->version()->GetString());
    EXPECT_TRUE(extensions::util::IsIncognitoEnabled(good2->id(), profile()));
    EXPECT_EQ(Extension::DISABLE_USER_ACTION,
              ExtensionPrefs::Get(profile())->GetDisableReasons(good2->id()));
  }
  
  // Tests that updating preserves extension location.
  TEST_F(ExtensionServiceTest, UpdateExtensionPreservesLocation) {
    InitializeEmptyExtensionService();
    base::FilePath path = data_dir().AppendASCII("good.crx");
  
    const Extension* good = InstallCRX(path, Manifest::EXTERNAL_PREF, INSTALL_NEW,
                                       Extension::NO_FLAGS);
  
    ASSERT_EQ("1.0.0.0", good->VersionString());
    ASSERT_EQ(good_crx, good->id());
  
    path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(good_crx, path, ENABLED);
    const Extension* good2 = service()->GetExtensionById(good_crx, false);
    ASSERT_EQ("1.0.0.1", good2->version()->GetString());
    EXPECT_EQ(good2->location(), Manifest::EXTERNAL_PREF);
  }
  
  // Makes sure that LOAD extension types can downgrade.
  TEST_F(ExtensionServiceTest, LoadExtensionsCanDowngrade) {
    InitializeEmptyExtensionService();
  
    base::ScopedTempDir temp;
    ASSERT_TRUE(temp.CreateUniqueTempDir());
  
    // We'll write the extension manifest dynamically to a temporary path
    // to make it easier to change the version number.
    base::FilePath extension_path = temp.GetPath();
    base::FilePath manifest_path =
        extension_path.Append(extensions::kManifestFilename);
    ASSERT_FALSE(base::PathExists(manifest_path));
  
    // Start with version 2.0.
    base::DictionaryValue manifest;
    manifest.SetString("version", "2.0");
    manifest.SetString("name", "LOAD Downgrade Test");
    manifest.SetInteger("manifest_version", 2);
  
    JSONFileValueSerializer serializer(manifest_path);
    ASSERT_TRUE(serializer.Serialize(manifest));
  
    extensions::UnpackedInstaller::Create(service())->Load(extension_path);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(Manifest::UNPACKED, loaded_[0]->location());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ("2.0", loaded_[0]->VersionString());
  
    // Now set the version number to 1.0, reload the extensions and verify that
    // the downgrade was accepted.
    manifest.SetString("version", "1.0");
    ASSERT_TRUE(serializer.Serialize(manifest));
  
    extensions::UnpackedInstaller::Create(service())->Load(extension_path);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(Manifest::UNPACKED, loaded_[0]->location());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ("1.0", loaded_[0]->VersionString());
  }
  
  #if !defined(OS_POSIX) || defined(OS_MACOSX)
  // LOAD extensions with plugins require approval.
  // Only run this on platforms that support NPAPI plugins.
  TEST_F(ExtensionServiceTest, LoadExtensionsWithPlugins) {
    base::FilePath extension_with_plugin_path = good1_path();
    base::FilePath extension_no_plugin_path = good2_path();
  
    InitPluginService();
    InitializeEmptyExtensionService();
    service()->set_show_extensions_prompts(true);
  
    // Start by canceling any install prompts.
    std::unique_ptr<extensions::ScopedTestDialogAutoConfirm> auto_confirm(
        new extensions::ScopedTestDialogAutoConfirm(
            extensions::ScopedTestDialogAutoConfirm::CANCEL));
  
    // The extension that has a plugin should not install.
    extensions::UnpackedInstaller::Create(service())
        ->Load(extension_with_plugin_path);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(0u, loaded_.size());
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    // But the extension with no plugin should since there's no prompt.
    ExtensionErrorReporter::GetInstance()->ClearErrors();
    extensions::UnpackedInstaller::Create(service())
        ->Load(extension_no_plugin_path);
    content::RunAllBlockingPoolTasksUntilIdle();
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(1u, loaded_.size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good2));
  
    // The plugin extension should install if we accept the dialog.
    auto_confirm.reset();
    auto_confirm.reset(new extensions::ScopedTestDialogAutoConfirm(
        extensions::ScopedTestDialogAutoConfirm::ACCEPT));
  
    ExtensionErrorReporter::GetInstance()->ClearErrors();
    extensions::UnpackedInstaller::Create(service())
        ->Load(extension_with_plugin_path);
    content::RunAllBlockingPoolTasksUntilIdle();
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(2u, loaded_.size());
    EXPECT_EQ(2u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good1));
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good2));
  
    // Make sure the granted permissions have been setup.
    std::unique_ptr<const PermissionSet> permissions =
        ExtensionPrefs::Get(profile())->GetGrantedPermissions(good1);
    ASSERT_TRUE(permissions);
    EXPECT_FALSE(permissions->IsEmpty());
    EXPECT_TRUE(permissions->HasEffectiveFullAccess());
    EXPECT_FALSE(permissions->apis().empty());
    EXPECT_TRUE(permissions->HasAPIPermission(APIPermission::kPlugin));
  
    // We should be able to reload the extension without getting another prompt.
    loaded_.clear();
    auto_confirm.reset();
    auto_confirm.reset(new extensions::ScopedTestDialogAutoConfirm(
        extensions::ScopedTestDialogAutoConfirm::CANCEL));
  
    service()->ReloadExtension(good1);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1u, loaded_.size());
    EXPECT_EQ(2u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  #endif  // !defined(OS_POSIX) || defined(OS_MACOSX)
  
  namespace {
  
  bool IsExtension(const Extension* extension) {
    return extension->GetType() == Manifest::TYPE_EXTENSION;
  }
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  std::set<std::string> StringSet(const std::string& s) {
    std::set<std::string> set;
    set.insert(s);
    return set;
  }
  std::set<std::string> StringSet(const std::string& s1, const std::string& s2) {
    std::set<std::string> set = StringSet(s1);
    set.insert(s2);
    return set;
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  }  // namespace
  
  // Test adding a pending extension.
  TEST_F(ExtensionServiceTest, AddPendingExtensionFromSync) {
    InitializeEmptyExtensionService();
  
    const std::string kFakeId(all_zero);
    const GURL kFakeUpdateURL("http:://fake.update/url");
    const bool kFakeRemoteInstall(false);
  
    EXPECT_TRUE(
        service()->pending_extension_manager()->AddFromSync(
            kFakeId,
            kFakeUpdateURL,
            base::Version(),
            &IsExtension,
            kFakeRemoteInstall));
  
    const extensions::PendingExtensionInfo* pending_extension_info;
    ASSERT_TRUE((pending_extension_info =
                     service()->pending_extension_manager()->GetById(kFakeId)));
    EXPECT_EQ(kFakeUpdateURL, pending_extension_info->update_url());
    EXPECT_EQ(&IsExtension, pending_extension_info->should_allow_install_);
    // Use
    // EXPECT_TRUE(kFakeRemoteInstall == pending_extension_info->remote_install())
    // instead of
    // EXPECT_EQ(kFakeRemoteInstall, pending_extension_info->remote_install())
    // as gcc 4.7 issues the following warning on EXPECT_EQ(false, x), which is
    // turned into an error with -Werror=conversion-null:
    //   converting 'false' to pointer type for argument 1 of
    //   'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)'
    // https://code.google.com/p/googletest/issues/detail?id=458
    EXPECT_TRUE(kFakeRemoteInstall == pending_extension_info->remote_install());
  }
  
  namespace {
  const char kGoodId[] = "ldnnhddmnhbkjipkidpdiheffobcpfmf";
  const char kGoodUpdateURL[] = "http://good.update/url";
  const char kGoodVersion[] = "1";
  const bool kGoodIsFromSync = true;
  const bool kGoodRemoteInstall = false;
  }  // namespace
  
  // Test installing a pending extension (this goes through
  // ExtensionService::UpdateExtension).
  TEST_F(ExtensionServiceTest, UpdatePendingExtension) {
    InitializeEmptyExtensionService();
    EXPECT_TRUE(
        service()->pending_extension_manager()->AddFromSync(
            kGoodId,
            GURL(kGoodUpdateURL),
            base::Version(kGoodVersion),
            &IsExtension,
            kGoodRemoteInstall));
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    UpdateExtension(kGoodId, path, ENABLED);
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  
    const Extension* extension = service()->GetExtensionById(kGoodId, true);
    EXPECT_TRUE(extension);
  }
  
  TEST_F(ExtensionServiceTest, UpdatePendingExtensionWrongVersion) {
    InitializeEmptyExtensionService();
    base::Version other_version("0.1");
    ASSERT_TRUE(other_version.IsValid());
    ASSERT_NE(other_version, base::Version(kGoodVersion));
    EXPECT_TRUE(
        service()->pending_extension_manager()->AddFromSync(
            kGoodId,
            GURL(kGoodUpdateURL),
            other_version,
            &IsExtension,
            kGoodRemoteInstall));
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    // After installation, the extension should be disabled, because it's missing
    // permissions.
    UpdateExtension(kGoodId, path, DISABLED);
  
    EXPECT_TRUE(
        ExtensionPrefs::Get(profile())->DidExtensionEscalatePermissions(kGoodId));
  
    // It should still have been installed though.
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  
    const Extension* extension = service()->GetExtensionById(kGoodId, true);
    EXPECT_TRUE(extension);
  }
  
  namespace {
  
  bool IsTheme(const Extension* extension) {
    return extension->is_theme();
  }
  
  }  // namespace
  
  // Test updating a pending theme.
  // Disabled due to ASAN failure. http://crbug.com/108320
  TEST_F(ExtensionServiceTest, DISABLED_UpdatePendingTheme) {
    InitializeEmptyExtensionService();
    EXPECT_TRUE(service()->pending_extension_manager()->AddFromSync(
        theme_crx, GURL(), base::Version(), &IsTheme, false));
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(theme_crx));
  
    base::FilePath path = data_dir().AppendASCII("theme.crx");
    UpdateExtension(theme_crx, path, ENABLED);
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(theme_crx));
  
    const Extension* extension = service()->GetExtensionById(theme_crx, true);
    ASSERT_TRUE(extension);
  
    EXPECT_FALSE(
        ExtensionPrefs::Get(profile())->IsExtensionDisabled(extension->id()));
    EXPECT_TRUE(service()->IsExtensionEnabled(theme_crx));
  }
  
  #if defined(OS_CHROMEOS)
  // Always fails on ChromeOS: http://crbug.com/79737
  #define MAYBE_UpdatePendingExternalCrx DISABLED_UpdatePendingExternalCrx
  #else
  #define MAYBE_UpdatePendingExternalCrx UpdatePendingExternalCrx
  #endif
  // Test updating a pending CRX as if the source is an external extension
  // with an update URL.  In this case we don't know if the CRX is a theme
  // or not.
  TEST_F(ExtensionServiceTest, MAYBE_UpdatePendingExternalCrx) {
    InitializeEmptyExtensionService();
    EXPECT_TRUE(service()->pending_extension_manager()->AddFromExternalUpdateUrl(
        theme_crx,
        std::string(),
        GURL(),
        Manifest::EXTERNAL_PREF_DOWNLOAD,
        Extension::NO_FLAGS,
        false));
  
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(theme_crx));
  
    base::FilePath path = data_dir().AppendASCII("theme.crx");
    UpdateExtension(theme_crx, path, ENABLED);
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(theme_crx));
  
    const Extension* extension = service()->GetExtensionById(theme_crx, true);
    ASSERT_TRUE(extension);
  
    EXPECT_FALSE(
        ExtensionPrefs::Get(profile())->IsExtensionDisabled(extension->id()));
    EXPECT_TRUE(service()->IsExtensionEnabled(extension->id()));
    EXPECT_FALSE(
        extensions::util::IsIncognitoEnabled(extension->id(), profile()));
  }
  
  // Test updating a pending CRX as if the source is an external extension
  // with an update URL.  The external update should overwrite a sync update,
  // but a sync update should not overwrite a non-sync update.
  TEST_F(ExtensionServiceTest, UpdatePendingExternalCrxWinsOverSync) {
    InitializeEmptyExtensionService();
  
    // Add a crx to be installed from the update mechanism.
    EXPECT_TRUE(
        service()->pending_extension_manager()->AddFromSync(
            kGoodId,
            GURL(kGoodUpdateURL),
            base::Version(),
            &IsExtension,
            kGoodRemoteInstall));
  
    // Check that there is a pending crx, with is_from_sync set to true.
    const extensions::PendingExtensionInfo* pending_extension_info;
    ASSERT_TRUE((pending_extension_info =
                     service()->pending_extension_manager()->GetById(kGoodId)));
    EXPECT_TRUE(pending_extension_info->is_from_sync());
  
    // Add a crx to be updated, with the same ID, from a non-sync source.
    EXPECT_TRUE(service()->pending_extension_manager()->AddFromExternalUpdateUrl(
        kGoodId,
        std::string(),
        GURL(kGoodUpdateURL),
        Manifest::EXTERNAL_PREF_DOWNLOAD,
        Extension::NO_FLAGS,
        false));
  
    // Check that there is a pending crx, with is_from_sync set to false.
    ASSERT_TRUE((pending_extension_info =
                     service()->pending_extension_manager()->GetById(kGoodId)));
    EXPECT_FALSE(pending_extension_info->is_from_sync());
    EXPECT_EQ(Manifest::EXTERNAL_PREF_DOWNLOAD,
              pending_extension_info->install_source());
  
    // Add a crx to be installed from the update mechanism.
    EXPECT_FALSE(
        service()->pending_extension_manager()->AddFromSync(
            kGoodId,
            GURL(kGoodUpdateURL),
            base::Version(),
            &IsExtension,
            kGoodRemoteInstall));
  
    // Check that the external, non-sync update was not overridden.
    ASSERT_TRUE((pending_extension_info =
                     service()->pending_extension_manager()->GetById(kGoodId)));
    EXPECT_FALSE(pending_extension_info->is_from_sync());
    EXPECT_EQ(Manifest::EXTERNAL_PREF_DOWNLOAD,
              pending_extension_info->install_source());
  }
  
  // Updating a theme should fail if the updater is explicitly told that
  // the CRX is not a theme.
  TEST_F(ExtensionServiceTest, UpdatePendingCrxThemeMismatch) {
    InitializeEmptyExtensionService();
    EXPECT_TRUE(service()->pending_extension_manager()->AddFromSync(
        theme_crx, GURL(), base::Version(), &IsExtension, false));
  
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(theme_crx));
  
    base::FilePath path = data_dir().AppendASCII("theme.crx");
    UpdateExtension(theme_crx, path, FAILED_SILENTLY);
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(theme_crx));
  
    const Extension* extension = service()->GetExtensionById(theme_crx, true);
    ASSERT_FALSE(extension);
  }
  
  // TODO(akalin): Test updating a pending extension non-silently once
  // we can mock out ExtensionInstallUI and inject our version into
  // UpdateExtension().
  
  // Test updating a pending extension which fails the should-install test.
  TEST_F(ExtensionServiceTest, UpdatePendingExtensionFailedShouldInstallTest) {
    InitializeEmptyExtensionService();
    // Add pending extension with a flipped is_theme.
    EXPECT_TRUE(
        service()->pending_extension_manager()->AddFromSync(
            kGoodId,
            GURL(kGoodUpdateURL),
            base::Version(),
            &IsTheme,
            kGoodRemoteInstall));
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    UpdateExtension(kGoodId, path, UPDATED);
  
    // TODO(akalin): Figure out how to check that the extensions
    // directory is cleaned up properly in OnExtensionInstalled().
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  }
  
  // TODO(akalin): Figure out how to test that installs of pending
  // unsyncable extensions are blocked.
  
  // Test updating a pending extension for one that is not pending.
  TEST_F(ExtensionServiceTest, UpdatePendingExtensionNotPending) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    UpdateExtension(kGoodId, path, UPDATED);
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  }
  
  // Test updating a pending extension for one that is already
  // installed.
  TEST_F(ExtensionServiceTest, UpdatePendingExtensionAlreadyInstalled) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
  
    EXPECT_FALSE(good->is_theme());
  
    // Use AddExtensionImpl() as AddFrom*() would balk.
    service()->pending_extension_manager()->AddExtensionImpl(
        good->id(),
        std::string(),
        extensions::ManifestURL::GetUpdateURL(good),
        base::Version(),
        &IsExtension,
        kGoodIsFromSync,
        Manifest::INTERNAL,
        Extension::NO_FLAGS,
        false,
        kGoodRemoteInstall);
    UpdateExtension(good->id(), path, ENABLED);
  
    EXPECT_FALSE(service()->pending_extension_manager()->IsIdPending(kGoodId));
  }
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Tests blacklisting then unblacklisting extensions after the service has been
  // initialized.
  TEST_F(ExtensionServiceTest, SetUnsetBlacklistInPrefs) {
    extensions::TestBlacklist test_blacklist;
    // A profile with 3 extensions installed: good0, good1, and good2.
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
    service()->Init();
  
    const extensions::ExtensionSet& enabled_extensions =
        registry()->enabled_extensions();
    const extensions::ExtensionSet& blacklisted_extensions =
        registry()->blacklisted_extensions();
  
    EXPECT_TRUE(enabled_extensions.Contains(good0) &&
                !blacklisted_extensions.Contains(good0));
    EXPECT_TRUE(enabled_extensions.Contains(good1) &&
                !blacklisted_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2) &&
                !blacklisted_extensions.Contains(good2));
  
    EXPECT_FALSE(IsPrefExist(good0, "blacklist"));
    EXPECT_FALSE(IsPrefExist(good1, "blacklist"));
    EXPECT_FALSE(IsPrefExist(good2, "blacklist"));
    EXPECT_FALSE(IsPrefExist("invalid_id", "blacklist"));
  
    // Blacklist good0 and good1 (and an invalid extension ID).
    test_blacklist.SetBlacklistState(
        good0, extensions::BLACKLISTED_MALWARE, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_MALWARE, true);
    test_blacklist.SetBlacklistState(
        "invalid_id", extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_TRUE(!enabled_extensions.Contains(good0) &&
                blacklisted_extensions.Contains(good0));
    EXPECT_TRUE(!enabled_extensions.Contains(good1) &&
                blacklisted_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2) &&
                !blacklisted_extensions.Contains(good2));
  
    EXPECT_TRUE(ValidateBooleanPref(good0, "blacklist", true));
    EXPECT_TRUE(ValidateBooleanPref(good1, "blacklist", true));
    EXPECT_FALSE(IsPrefExist(good2, "blacklist"));
    EXPECT_FALSE(IsPrefExist("invalid_id", "blacklist"));
  
    // Un-blacklist good1 and blacklist good2.
    test_blacklist.Clear(false);
    test_blacklist.SetBlacklistState(
        good0, extensions::BLACKLISTED_MALWARE, true);
    test_blacklist.SetBlacklistState(
        good2, extensions::BLACKLISTED_MALWARE, true);
    test_blacklist.SetBlacklistState(
        "invalid_id", extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_TRUE(!enabled_extensions.Contains(good0) &&
                blacklisted_extensions.Contains(good0));
    EXPECT_TRUE(enabled_extensions.Contains(good1) &&
                !blacklisted_extensions.Contains(good1));
    EXPECT_TRUE(!enabled_extensions.Contains(good2) &&
                blacklisted_extensions.Contains(good2));
  
    EXPECT_TRUE(ValidateBooleanPref(good0, "blacklist", true));
    EXPECT_FALSE(IsPrefExist(good1, "blacklist"));
    EXPECT_TRUE(ValidateBooleanPref(good2, "blacklist", true));
    EXPECT_FALSE(IsPrefExist("invalid_id", "blacklist"));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Tests trying to install a blacklisted extension.
  TEST_F(ExtensionServiceTest, BlacklistedExtensionWillNotInstall) {
    scoped_refptr<FakeSafeBrowsingDatabaseManager> blacklist_db(
        new FakeSafeBrowsingDatabaseManager(true));
    Blacklist::ScopedDatabaseManagerForTest scoped_blacklist_db(blacklist_db);
  
    InitializeEmptyExtensionService();
    service()->Init();
  
    // After blacklisting good_crx, we cannot install it.
    blacklist_db->SetUnsafe(good_crx).NotifyUpdate();
    base::RunLoop().RunUntilIdle();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    // HACK: specify WAS_INSTALLED_BY_DEFAULT so that test machinery doesn't
    // decide to install this silently. Somebody should fix these tests, all
    // 6,000 lines of them. Hah!
    InstallCRX(path, INSTALL_FAILED, Extension::WAS_INSTALLED_BY_DEFAULT);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Tests that previously blacklisted extension will be enabled if it is removed
  // from the blacklist. Also checks that all blacklisted preferences will be
  // cleared in that case.
  TEST_F(ExtensionServiceTest, RemoveExtensionFromBlacklist) {
    extensions::TestBlacklist test_blacklist;
    // A profile with 3 extensions installed: good0, good1, and good2.
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
    service()->Init();
  
    ASSERT_TRUE(registry()->enabled_extensions().Contains(good0));
    extensions::TestExtensionRegistryObserver observer(
        extensions::ExtensionRegistry::Get(profile()), good0);
  
    // Add the extension to the blacklist.
    test_blacklist.SetBlacklistState(good0, extensions::BLACKLISTED_MALWARE,
                                     true);
    observer.WaitForExtensionUnloaded();
  
    // The extension should be disabled, both "blacklist" and "blacklist_state"
    // prefs should be set.
    auto* prefs = ExtensionPrefs::Get(profile());
    EXPECT_FALSE(registry()->enabled_extensions().Contains(good0));
    EXPECT_TRUE(prefs->IsExtensionBlacklisted(good0));
    EXPECT_EQ(extensions::BLACKLISTED_MALWARE,
              prefs->GetExtensionBlacklistState(good0));
  
    // Remove the extension from the blacklist.
    test_blacklist.SetBlacklistState(good0, extensions::NOT_BLACKLISTED, true);
    observer.WaitForExtensionLoaded()->id();
  
    // The extension should be enabled, both "blacklist" and "blacklist_state"
    // should be cleared.
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good0));
    EXPECT_FALSE(prefs->IsExtensionBlacklisted(good0));
    EXPECT_EQ(extensions::NOT_BLACKLISTED,
              prefs->GetExtensionBlacklistState(good0));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Unload blacklisted extension on policy change.
  TEST_F(ExtensionServiceTest, UnloadBlacklistedExtensionPolicy) {
    extensions::TestBlacklist test_blacklist;
  
    // A profile with no extensions installed.
    InitializeEmptyExtensionServiceWithTestingPrefs();
    test_blacklist.Attach(service()->blacklist_);
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
  
    const Extension* good = InstallCRX(path, INSTALL_NEW);
    EXPECT_EQ(good_crx, good->id());
    UpdateExtension(good_crx, path, FAILED_SILENTLY);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.SetIndividualExtensionInstallationAllowed(good_crx, true);
    }
  
    test_blacklist.SetBlacklistState(
        good_crx, extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    // The good_crx is blacklisted and the whitelist doesn't negate it.
    ASSERT_TRUE(ValidateBooleanPref(good_crx, "blacklist", true));
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Tests that a blacklisted extension is eventually unloaded on startup, if it
  // wasn't already.
  TEST_F(ExtensionServiceTest, WillNotLoadBlacklistedExtensionsFromDirectory) {
    extensions::TestBlacklist test_blacklist;
  
    // A profile with 3 extensions installed: good0, good1, and good2.
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
  
    // Blacklist good1 before the service initializes.
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_MALWARE, false);
  
    // Load extensions.
    service()->Init();
    ASSERT_EQ(3u, loaded_.size());  // hasn't had time to blacklist yet
  
    base::RunLoop().RunUntilIdle();
  
    ASSERT_EQ(1u, registry()->blacklisted_extensions().size());
    ASSERT_EQ(2u, registry()->enabled_extensions().size());
  
    ASSERT_TRUE(registry()->enabled_extensions().Contains(good0));
    ASSERT_TRUE(registry()->blacklisted_extensions().Contains(good1));
    ASSERT_TRUE(registry()->enabled_extensions().Contains(good2));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Tests extensions blacklisted in prefs on startup; one still blacklisted by
  // safe browsing, the other not. The not-blacklisted one should recover.
  TEST_F(ExtensionServiceTest, BlacklistedInPrefsFromStartup) {
    extensions::TestBlacklist test_blacklist;
  
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
    ExtensionPrefs::Get(profile())->SetExtensionBlacklistState(
        good0, extensions::BLACKLISTED_MALWARE);
    ExtensionPrefs::Get(profile())->SetExtensionBlacklistState(
        good1, extensions::BLACKLISTED_MALWARE);
  
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_MALWARE, false);
  
    // Extension service hasn't loaded yet, but IsExtensionEnabled reads out of
    // prefs. Ensure it takes into account the blacklist state (crbug.com/373842).
    EXPECT_FALSE(service()->IsExtensionEnabled(good0));
    EXPECT_FALSE(service()->IsExtensionEnabled(good1));
    EXPECT_TRUE(service()->IsExtensionEnabled(good2));
  
    service()->Init();
  
    EXPECT_EQ(2u, registry()->blacklisted_extensions().size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    EXPECT_TRUE(registry()->blacklisted_extensions().Contains(good0));
    EXPECT_TRUE(registry()->blacklisted_extensions().Contains(good1));
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good2));
  
    // Give time for the blacklist to update.
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(1u, registry()->blacklisted_extensions().size());
    EXPECT_EQ(2u, registry()->enabled_extensions().size());
  
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good0));
    EXPECT_TRUE(registry()->blacklisted_extensions().Contains(good1));
    EXPECT_TRUE(registry()->enabled_extensions().Contains(good2));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Extension is added to blacklist with BLACKLISTED_POTENTIALLY_UNWANTED state
  // after it is installed. It is then successfully re-enabled by the user.
  TEST_F(ExtensionServiceTest, GreylistedExtensionDisabled) {
    extensions::TestBlacklist test_blacklist;
    // A profile with 3 extensions installed: good0, good1, and good2.
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
    service()->Init();
  
    const extensions::ExtensionSet& enabled_extensions =
        registry()->enabled_extensions();
    const extensions::ExtensionSet& disabled_extensions =
        registry()->disabled_extensions();
  
    EXPECT_TRUE(enabled_extensions.Contains(good0));
    EXPECT_TRUE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2));
  
    // Blacklist good0 and good1 (and an invalid extension ID).
    test_blacklist.SetBlacklistState(
        good0, extensions::BLACKLISTED_CWS_POLICY_VIOLATION, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_POTENTIALLY_UNWANTED, true);
    test_blacklist.SetBlacklistState(
        "invalid_id", extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_FALSE(enabled_extensions.Contains(good0));
    EXPECT_TRUE(disabled_extensions.Contains(good0));
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2));
    EXPECT_FALSE(disabled_extensions.Contains(good2));
  
    ValidateIntegerPref(
        good0, "blacklist_state", extensions::BLACKLISTED_CWS_POLICY_VIOLATION);
    ValidateIntegerPref(
        good1, "blacklist_state", extensions::BLACKLISTED_POTENTIALLY_UNWANTED);
  
    // Now user enables good0.
    service()->EnableExtension(good0);
  
    EXPECT_TRUE(enabled_extensions.Contains(good0));
    EXPECT_FALSE(disabled_extensions.Contains(good0));
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
  
    // Remove extensions from blacklist.
    test_blacklist.SetBlacklistState(
        good0, extensions::NOT_BLACKLISTED, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::NOT_BLACKLISTED, true);
    base::RunLoop().RunUntilIdle();
  
    // All extensions are enabled.
    EXPECT_TRUE(enabled_extensions.Contains(good0));
    EXPECT_FALSE(disabled_extensions.Contains(good0));
    EXPECT_TRUE(enabled_extensions.Contains(good1));
    EXPECT_FALSE(disabled_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2));
    EXPECT_FALSE(disabled_extensions.Contains(good2));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // When extension is removed from greylist, do not re-enable it if it is
  // disabled by user.
  TEST_F(ExtensionServiceTest, GreylistDontEnableManuallyDisabled) {
    extensions::TestBlacklist test_blacklist;
    // A profile with 3 extensions installed: good0, good1, and good2.
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
    service()->Init();
  
    const extensions::ExtensionSet& enabled_extensions =
        registry()->enabled_extensions();
    const extensions::ExtensionSet& disabled_extensions =
        registry()->disabled_extensions();
  
    // Manually disable.
    service()->DisableExtension(good0,
                                extensions::Extension::DISABLE_USER_ACTION);
  
    test_blacklist.SetBlacklistState(
        good0, extensions::BLACKLISTED_CWS_POLICY_VIOLATION, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_POTENTIALLY_UNWANTED, true);
    test_blacklist.SetBlacklistState(
        good2, extensions::BLACKLISTED_SECURITY_VULNERABILITY, true);
    base::RunLoop().RunUntilIdle();
  
    // All extensions disabled.
    EXPECT_FALSE(enabled_extensions.Contains(good0));
    EXPECT_TRUE(disabled_extensions.Contains(good0));
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
    EXPECT_FALSE(enabled_extensions.Contains(good2));
    EXPECT_TRUE(disabled_extensions.Contains(good2));
  
    // Greylisted extension can be enabled.
    service()->EnableExtension(good1);
    EXPECT_TRUE(enabled_extensions.Contains(good1));
    EXPECT_FALSE(disabled_extensions.Contains(good1));
  
    // good1 is now manually disabled.
    service()->DisableExtension(good1,
                                extensions::Extension::DISABLE_USER_ACTION);
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
  
    // Remove extensions from blacklist.
    test_blacklist.SetBlacklistState(
        good0, extensions::NOT_BLACKLISTED, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::NOT_BLACKLISTED, true);
    test_blacklist.SetBlacklistState(
        good2, extensions::NOT_BLACKLISTED, true);
    base::RunLoop().RunUntilIdle();
  
    // good0 and good1 remain disabled.
    EXPECT_FALSE(enabled_extensions.Contains(good0));
    EXPECT_TRUE(disabled_extensions.Contains(good0));
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2));
    EXPECT_FALSE(disabled_extensions.Contains(good2));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Blacklisted extension with unknown state are not enabled/disabled.
  TEST_F(ExtensionServiceTest, GreylistUnknownDontChange) {
    extensions::TestBlacklist test_blacklist;
    // A profile with 3 extensions installed: good0, good1, and good2.
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
    service()->Init();
  
    const extensions::ExtensionSet& enabled_extensions =
        registry()->enabled_extensions();
    const extensions::ExtensionSet& disabled_extensions =
        registry()->disabled_extensions();
  
    test_blacklist.SetBlacklistState(
        good0, extensions::BLACKLISTED_CWS_POLICY_VIOLATION, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_POTENTIALLY_UNWANTED, true);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_FALSE(enabled_extensions.Contains(good0));
    EXPECT_TRUE(disabled_extensions.Contains(good0));
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2));
    EXPECT_FALSE(disabled_extensions.Contains(good2));
  
    test_blacklist.SetBlacklistState(
        good0, extensions::NOT_BLACKLISTED, true);
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_UNKNOWN, true);
    test_blacklist.SetBlacklistState(
        good2, extensions::BLACKLISTED_UNKNOWN, true);
    base::RunLoop().RunUntilIdle();
  
    // good0 re-enabled, other remain as they were.
    EXPECT_TRUE(enabled_extensions.Contains(good0));
    EXPECT_FALSE(disabled_extensions.Contains(good0));
    EXPECT_FALSE(enabled_extensions.Contains(good1));
    EXPECT_TRUE(disabled_extensions.Contains(good1));
    EXPECT_TRUE(enabled_extensions.Contains(good2));
    EXPECT_FALSE(disabled_extensions.Contains(good2));
  }
  
  // Tests that blacklisted extensions cannot be reloaded, both those loaded
  // before and after extension service startup.
  TEST_F(ExtensionServiceTest, ReloadBlacklistedExtension) {
    extensions::TestBlacklist test_blacklist;
  
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
  
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_MALWARE, false);
    service()->Init();
    test_blacklist.SetBlacklistState(
        good2, extensions::BLACKLISTED_MALWARE, false);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(StringSet(good0), registry()->enabled_extensions().GetIDs());
    EXPECT_EQ(StringSet(good1, good2),
              registry()->blacklisted_extensions().GetIDs());
  
    service()->ReloadExtension(good1);
    service()->ReloadExtension(good2);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(StringSet(good0), registry()->enabled_extensions().GetIDs());
    EXPECT_EQ(StringSet(good1, good2),
              registry()->blacklisted_extensions().GetIDs());
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  // Tests blocking then unblocking enabled extensions after the service has been
  // initialized.
  TEST_F(ExtensionServiceTest, BlockAndUnblockEnabledExtension) {
    InitializeGoodInstalledExtensionService();
    service()->Init();
  
    AssertExtensionBlocksAndUnblocks(true, good0);
  }
  
  // Tests blocking then unblocking disabled extensions after the service has been
  // initialized.
  TEST_F(ExtensionServiceTest, BlockAndUnblockDisabledExtension) {
    InitializeGoodInstalledExtensionService();
    service()->Init();
  
    service()->DisableExtension(good0, Extension::DISABLE_RELOAD);
  
    AssertExtensionBlocksAndUnblocks(true, good0);
  }
  
  // Tests blocking then unblocking terminated extensions after the service has
  // been initialized.
  TEST_F(ExtensionServiceTest, BlockAndUnblockTerminatedExtension) {
    InitializeGoodInstalledExtensionService();
    service()->Init();
  
    TerminateExtension(good0);
  
    AssertExtensionBlocksAndUnblocks(true, good0);
  }
  
  // Tests blocking then unblocking policy-forced extensions after the service has
  // been initialized.
  TEST_F(ExtensionServiceTest, BlockAndUnblockPolicyExtension) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      // // Blacklist everything.
      // pref.SetBlacklistedByDefault(true);
      // Mark good.crx for force-installation.
      pref.SetIndividualExtensionAutoInstalled(
          good_crx, "http://example.com/update_url", true);
    }
  
    // Have policy force-install an extension.
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(
        good_crx, "1.0.0.0", data_dir().AppendASCII("good_crx"));
  
    // Reloading extensions should find our externally registered extension
    // and install it.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
  
    AssertExtensionBlocksAndUnblocks(false, good_crx);
  }
  
  
  #if defined(ENABLE_BLACKLIST_TESTS)
  // Tests blocking then unblocking extensions that are blacklisted both before
  // and after Init().
  TEST_F(ExtensionServiceTest, BlockAndUnblockBlacklistedExtension) {
    extensions::TestBlacklist test_blacklist;
  
    InitializeGoodInstalledExtensionService();
    test_blacklist.Attach(service()->blacklist_);
  
    test_blacklist.SetBlacklistState(
        good0, extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    service()->Init();
  
    test_blacklist.SetBlacklistState(
        good1, extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    // Blacklisted extensions stay blacklisted.
    AssertExtensionBlocksAndUnblocks(false, good0);
    AssertExtensionBlocksAndUnblocks(false, good1);
  
    service()->BlockAllExtensions();
  
    // Remove an extension from the blacklist while the service is blocked.
    test_blacklist.SetBlacklistState(
        good0, extensions::NOT_BLACKLISTED, true);
    // Add an extension to the blacklist while the service is blocked.
    test_blacklist.SetBlacklistState(
        good2, extensions::BLACKLISTED_MALWARE, true);
    base::RunLoop().RunUntilIdle();
  
    // Go directly to blocked, do not pass go, do not collect $200.
    ASSERT_TRUE(IsBlocked(good0));
    // Get on the blacklist - even if you were blocked!
    ASSERT_FALSE(IsBlocked(good2));
  }
  #endif  // defined(ENABLE_BLACKLIST_TESTS)
  
  // Tests blocking then unblocking enabled component extensions after the service
  // has been initialized.
  TEST_F(ExtensionServiceTest, BlockAndUnblockEnabledComponentExtension) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    // Install a component extension.
    base::FilePath path = data_dir()
                              .AppendASCII("good")
                              .AppendASCII("Extensions")
                              .AppendASCII(good0)
                              .AppendASCII("1.0.0.0");
    std::string manifest;
    ASSERT_TRUE(base::ReadFileToString(
        path.Append(extensions::kManifestFilename), &manifest));
    service()->component_loader()->Add(manifest, path);
    service()->Init();
  
    // Component extension should never block.
    AssertExtensionBlocksAndUnblocks(false, good0);
  }
  
  // Tests blocking then unblocking a theme after the service has been
  // initialized.
  TEST_F(ExtensionServiceTest, BlockAndUnblockTheme) {
    InitializeEmptyExtensionService();
    service()->Init();
  
    base::FilePath path = data_dir().AppendASCII("theme.crx");
    InstallCRX(path, INSTALL_NEW);
  
    AssertExtensionBlocksAndUnblocks(true, theme_crx);
  }
  
  // Tests that blocking extensions before Init() results in loading blocked
  // extensions.
  TEST_F(ExtensionServiceTest, WillNotLoadExtensionsWhenBlocked) {
    InitializeGoodInstalledExtensionService();
  
    service()->BlockAllExtensions();
  
    service()->Init();
  
    ASSERT_TRUE(IsBlocked(good0));
    ASSERT_TRUE(IsBlocked(good0));
    ASSERT_TRUE(IsBlocked(good0));
  }
  
  // Tests that IsEnabledExtension won't crash on an uninstalled extension.
  TEST_F(ExtensionServiceTest, IsEnabledExtensionBlockedAndNotInstalled) {
    InitializeEmptyExtensionService();
  
    service()->BlockAllExtensions();
  
    service()->IsExtensionEnabled(theme_crx);
  }
  
  // Will not install extension blacklisted by policy.
  TEST_F(ExtensionServiceTest, BlacklistedByPolicyWillNotInstall) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    // Blacklist everything.
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.SetBlacklistedByDefault(true);
    }
  
    // Blacklist prevents us from installing good_crx.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_FAILED);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  
    // Now whitelist this particular extension.
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.SetIndividualExtensionInstallationAllowed(good_crx, true);
    }
  
    // Ensure we can now install good_crx.
    InstallCRX(path, INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  }
  
  // Extension blacklisted by policy get unloaded after installing.
  TEST_F(ExtensionServiceTest, BlacklistedByPolicyRemovedIfRunning) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    // Install good_crx.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      // Blacklist this extension.
      pref.SetIndividualExtensionInstallationAllowed(good_crx, false);
    }
  
    // Extension should not be running now.
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  
  // Tests that component extensions are not blacklisted by policy.
  TEST_F(ExtensionServiceTest, ComponentExtensionWhitelisted) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    // Blacklist everything.
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.SetBlacklistedByDefault(true);
    }
  
    // Install a component extension.
    base::FilePath path = data_dir()
                              .AppendASCII("good")
                              .AppendASCII("Extensions")
                              .AppendASCII(good0)
                              .AppendASCII("1.0.0.0");
    std::string manifest;
    ASSERT_TRUE(base::ReadFileToString(
        path.Append(extensions::kManifestFilename), &manifest));
    service()->component_loader()->Add(manifest, path);
    service()->Init();
  
    // Extension should be installed despite blacklist.
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good0, false));
  
    // Poke external providers and make sure the extension is still present.
    service()->CheckForExternalUpdates();
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good0, false));
  
    // Extension should not be uninstalled on blacklist changes.
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.SetIndividualExtensionInstallationAllowed(good0, false);
    }
    base::RunLoop().RunUntilIdle();
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good0, false));
  }
  
  // Tests that policy-installed extensions are not blacklisted by policy.
  TEST_F(ExtensionServiceTest, PolicyInstalledExtensionsWhitelisted) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      // Blacklist everything.
      pref.SetBlacklistedByDefault(true);
      // Mark good.crx for force-installation.
      pref.SetIndividualExtensionAutoInstalled(
          good_crx, "http://example.com/update_url", true);
    }
  
    // Have policy force-install an extension.
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(
        good_crx, "1.0.0.0", data_dir().AppendASCII("good.crx"));
  
    // Reloading extensions should find our externally registered extension
    // and install it.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
  
    // Extension should be installed despite blacklist.
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
  
    // Blacklist update should not uninstall the extension.
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.SetIndividualExtensionInstallationAllowed(good0, false);
    }
    base::RunLoop().RunUntilIdle();
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
  }
  
  // Tests that extensions cannot be installed if the policy provider prohibits
  // it. This functionality is implemented in CrxInstaller::ConfirmInstall().
  TEST_F(ExtensionServiceTest, ManagementPolicyProhibitsInstall) {
    InitializeEmptyExtensionService();
  
    GetManagementPolicy()->UnregisterAllProviders();
    extensions::TestManagementPolicyProvider provider_(
        extensions::TestManagementPolicyProvider::PROHIBIT_LOAD);
    GetManagementPolicy()->RegisterProvider(&provider_);
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_FAILED);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  
  // Tests that extensions cannot be loaded from prefs if the policy provider
  // prohibits it. This functionality is implemented in InstalledLoader::Load().
  TEST_F(ExtensionServiceTest, ManagementPolicyProhibitsLoadFromPrefs) {
    InitializeEmptyExtensionService();
  
    // Create a fake extension to be loaded as though it were read from prefs.
    base::FilePath path =
        data_dir().AppendASCII("management").AppendASCII("simple_extension");
    base::DictionaryValue manifest;
    manifest.SetString(keys::kName, "simple_extension");
    manifest.SetString(keys::kVersion, "1");
    // UNPACKED is for extensions loaded from a directory. We use it here, even
    // though we're testing loading from prefs, so that we don't need to provide
    // an extension key.
    extensions::ExtensionInfo extension_info(
        &manifest, std::string(), path, Manifest::UNPACKED);
  
    // Ensure we can load it with no management policy in place.
    GetManagementPolicy()->UnregisterAllProviders();
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    extensions::InstalledLoader(service()).Load(extension_info, false);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    const Extension* extension =
        (registry()->enabled_extensions().begin())->get();
    EXPECT_TRUE(
        service()->UninstallExtension(extension->id(),
                                      extensions::UNINSTALL_REASON_FOR_TESTING,
                                      base::Bind(&base::DoNothing),
                                      NULL));
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  
    // Ensure we cannot load it if management policy prohibits installation.
    extensions::TestManagementPolicyProvider provider_(
        extensions::TestManagementPolicyProvider::PROHIBIT_LOAD);
    GetManagementPolicy()->RegisterProvider(&provider_);
  
    extensions::InstalledLoader(service()).Load(extension_info, false);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  
  // Tests disabling an extension when prohibited by the ManagementPolicy.
  TEST_F(ExtensionServiceTest, ManagementPolicyProhibitsDisable) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    GetManagementPolicy()->UnregisterAllProviders();
    extensions::TestManagementPolicyProvider provider(
        extensions::TestManagementPolicyProvider::PROHIBIT_MODIFY_STATUS);
    GetManagementPolicy()->RegisterProvider(&provider);
  
    // Attempt to disable it.
    service()->DisableExtension(good_crx, Extension::DISABLE_USER_ACTION);
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  
  // Tests uninstalling an extension when prohibited by the ManagementPolicy.
  TEST_F(ExtensionServiceTest, ManagementPolicyProhibitsUninstall) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    GetManagementPolicy()->UnregisterAllProviders();
    extensions::TestManagementPolicyProvider provider(
        extensions::TestManagementPolicyProvider::PROHIBIT_MODIFY_STATUS);
    GetManagementPolicy()->RegisterProvider(&provider);
  
    // Attempt to uninstall it.
    EXPECT_FALSE(
        service()->UninstallExtension(good_crx,
                                      extensions::UNINSTALL_REASON_FOR_TESTING,
                                      base::Bind(&base::DoNothing),
                                      NULL));
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
  }
  
  // Tests that previously installed extensions that are now prohibited from
  // being installed are removed.
  TEST_F(ExtensionServiceTest, ManagementPolicyUnloadsAllProhibited) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    InstallCRX(data_dir().AppendASCII("page_action.crx"), INSTALL_NEW);
    EXPECT_EQ(2u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    GetManagementPolicy()->UnregisterAllProviders();
    extensions::TestManagementPolicyProvider provider(
        extensions::TestManagementPolicyProvider::PROHIBIT_LOAD);
    GetManagementPolicy()->RegisterProvider(&provider);
  
    // Run the policy check.
    service()->CheckManagementPolicy();
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  
  // Tests that previously disabled extensions that are now required to be
  // enabled are re-enabled on reinstall.
  TEST_F(ExtensionServiceTest, ManagementPolicyRequiresEnable) {
    InitializeEmptyExtensionService();
  
    // Install, then disable, an extension.
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    service()->DisableExtension(good_crx, Extension::DISABLE_USER_ACTION);
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
  
    // Register an ExtensionManagementPolicy that requires the extension to remain
    // enabled.
    GetManagementPolicy()->UnregisterAllProviders();
    extensions::TestManagementPolicyProvider provider(
        extensions::TestManagementPolicyProvider::MUST_REMAIN_ENABLED);
    GetManagementPolicy()->RegisterProvider(&provider);
  
    // Reinstall the extension.
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_UPDATED);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  
  // Tests that extensions disabled by management policy can be installed but
  // will get disabled after installing.
  TEST_F(ExtensionServiceTest, ManagementPolicyProhibitsEnableOnInstalled) {
    InitializeEmptyExtensionService();
  
    // Register an ExtensionManagementPolicy that disables all extensions, with
    // a specified Extension::DisableReason.
    GetManagementPolicy()->UnregisterAllProviders();
    extensions::TestManagementPolicyProvider provider(
        extensions::TestManagementPolicyProvider::MUST_REMAIN_DISABLED);
    provider.SetDisableReason(Extension::DISABLE_NOT_VERIFIED);
    GetManagementPolicy()->RegisterProvider(&provider);
  
    // Attempts to install an extensions, it should be installed but disabled.
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_WITHOUT_LOAD);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
  
    // Verifies that the disable reason is set properly.
    EXPECT_EQ(Extension::DISABLE_NOT_VERIFIED,
              service()->extension_prefs_->GetDisableReasons(kGoodId));
  }
  
  // Tests that extensions with conflicting required permissions by enterprise
  // policy cannot be installed.
  TEST_F(ExtensionServiceTest, PolicyBlockedPermissionNewExtensionInstall) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
    base::FilePath path = data_dir().AppendASCII("permissions_blocklist");
  
    {
      // Update policy to block one of the required permissions of target.
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.AddBlockedPermission("*", "tabs");
    }
  
    // The extension should be failed to install.
    PackAndInstallCRX(path, INSTALL_FAILED);
  
    {
      // Update policy to block one of the optional permissions instead.
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.ClearBlockedPermissions("*");
      pref.AddBlockedPermission("*", "history");
    }
  
    // The extension should succeed to install this time.
    std::string id = PackAndInstallCRX(path, INSTALL_NEW)->id();
  
    // Uninstall the extension and update policy to block some arbitrary
    // unknown permission.
    UninstallExtension(id, false);
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.ClearBlockedPermissions("*");
      pref.AddBlockedPermission("*", "unknown.permission.for.testing");
    }
  
    // The extension should succeed to install as well.
    PackAndInstallCRX(path, INSTALL_NEW);
  }
  
  // Tests that extension supposed to be force installed but with conflicting
  // required permissions cannot be installed.
  TEST_F(ExtensionServiceTest, PolicyBlockedPermissionConflictsWithForceInstall) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    // Pack the crx file.
    base::FilePath path = data_dir().AppendASCII("permissions_blocklist");
    base::FilePath pem_path = data_dir().AppendASCII("permissions_blocklist.pem");
    base::ScopedTempDir temp_dir;
    EXPECT_TRUE(temp_dir.CreateUniqueTempDir());
    base::FilePath crx_path = temp_dir.GetPath().AppendASCII("temp.crx");
  
    PackCRX(path, pem_path, crx_path);
  
    {
      // Block one of the required permissions.
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.AddBlockedPermission("*", "tabs");
    }
  
    // Use MockExtensionProvider to simulate force installing extension.
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(permissions_blocklist, "1.0", crx_path);
  
    {
      // Attempts to force install this extension.
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      service()->CheckForExternalUpdates();
      observer.Wait();
    }
  
    // The extension should not be installed.
    ASSERT_FALSE(service()->GetInstalledExtension(permissions_blocklist));
  
    // Remove this extension from pending extension manager as we would like to
    // give another attempt later.
    service()->pending_extension_manager()->Remove(permissions_blocklist);
  
    {
      // Clears the permission block list.
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.ClearBlockedPermissions("*");
    }
  
    {
      // Attempts to force install this extension again.
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      service()->CheckForExternalUpdates();
      observer.Wait();
    }
  
    const Extension* installed =
        service()->GetInstalledExtension(permissions_blocklist);
    ASSERT_TRUE(installed);
    EXPECT_EQ(installed->location(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
  }
  
  // Tests that newer versions of an extension with conflicting required
  // permissions by enterprise policy cannot be updated to.
  TEST_F(ExtensionServiceTest, PolicyBlockedPermissionExtensionUpdate) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    base::FilePath path = data_dir().AppendASCII("permissions_blocklist");
    base::FilePath path2 = data_dir().AppendASCII("permissions_blocklist2");
    base::FilePath pem_path = data_dir().AppendASCII("permissions_blocklist.pem");
  
    // Install 'permissions_blocklist'.
    const Extension* installed = PackAndInstallCRX(path, pem_path, INSTALL_NEW);
    EXPECT_EQ(installed->id(), permissions_blocklist);
  
    {
      // Block one of the required permissions of 'permissions_blocklist2'.
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.AddBlockedPermission("*", "downloads");
    }
  
    // Install 'permissions_blocklist' again, should be updated.
    const Extension* updated = PackAndInstallCRX(path, pem_path, INSTALL_UPDATED);
    EXPECT_EQ(updated->id(), permissions_blocklist);
  
    std::string old_version = updated->VersionString();
  
    // Attempts to update to 'permissions_blocklist2' should fail.
    PackAndInstallCRX(path2, pem_path, INSTALL_FAILED);
  
    // Verify that the old version is still enabled.
    updated = service()->GetExtensionById(permissions_blocklist, false);
    ASSERT_TRUE(updated);
    EXPECT_EQ(old_version, updated->VersionString());
  }
  
  // Tests that policy update with additional permissions blocked revoke
  // conflicting granted optional permissions and unload extensions with
  // conflicting required permissions, including the force installed ones.
  TEST_F(ExtensionServiceTest, PolicyBlockedPermissionPolicyUpdate) {
    InitializeEmptyExtensionServiceWithTestingPrefs();
  
    base::FilePath path = data_dir().AppendASCII("permissions_blocklist");
    base::FilePath path2 = data_dir().AppendASCII("permissions_blocklist2");
    base::FilePath pem_path = data_dir().AppendASCII("permissions_blocklist.pem");
  
    // Pack the crx file.
    base::ScopedTempDir temp_dir;
    EXPECT_TRUE(temp_dir.CreateUniqueTempDir());
    base::FilePath crx_path = temp_dir.GetPath().AppendASCII("temp.crx");
  
    PackCRX(path2, pem_path, crx_path);
  
    // Install two arbitary extensions with specified manifest.
    std::string ext1 = PackAndInstallCRX(path, INSTALL_NEW)->id();
    std::string ext2 = PackAndInstallCRX(path2, INSTALL_NEW)->id();
    ASSERT_NE(ext1, permissions_blocklist);
    ASSERT_NE(ext2, permissions_blocklist);
    ASSERT_NE(ext1, ext2);
  
    // Force install another extension with known id and same manifest as 'ext2'.
    std::string ext2_forced = permissions_blocklist;
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(ext2_forced, "2.0", crx_path);
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
  
    extensions::ExtensionRegistry* registry =
        extensions::ExtensionRegistry::Get(profile());
  
    // Verify all three extensions are installed and enabled.
    ASSERT_TRUE(registry->enabled_extensions().GetByID(ext1));
    ASSERT_TRUE(registry->enabled_extensions().GetByID(ext2));
    ASSERT_TRUE(registry->enabled_extensions().GetByID(ext2_forced));
  
    // Grant all optional permissions to each extension.
    GrantAllOptionalPermissions(ext1);
    GrantAllOptionalPermissions(ext2);
    GrantAllOptionalPermissions(ext2_forced);
  
    std::unique_ptr<const PermissionSet> active_permissions =
        ExtensionPrefs::Get(profile())->GetActivePermissions(ext1);
    EXPECT_TRUE(active_permissions->HasAPIPermission(
        extensions::APIPermission::kDownloads));
  
    // Set policy to block 'downloads' permission.
    {
      ManagementPrefUpdater pref(profile_->GetTestingPrefService());
      pref.AddBlockedPermission("*", "downloads");
    }
  
    base::RunLoop().RunUntilIdle();
  
    // 'ext1' should still be enabled, but with 'downloads' permission revoked.
    EXPECT_TRUE(registry->enabled_extensions().GetByID(ext1));
    active_permissions =
        ExtensionPrefs::Get(profile())->GetActivePermissions(ext1);
    EXPECT_FALSE(active_permissions->HasAPIPermission(
        extensions::APIPermission::kDownloads));
  
    // 'ext2' should be disabled because one of its required permissions is
    // blocked.
    EXPECT_FALSE(registry->enabled_extensions().GetByID(ext2));
  
    // 'ext2_forced' should be handled the same as 'ext2'
    EXPECT_FALSE(registry->enabled_extensions().GetByID(ext2_forced));
  }
  
  // Flaky on windows; http://crbug.com/309833
  #if defined(OS_WIN)
  #define MAYBE_ExternalExtensionAutoAcknowledgement DISABLED_ExternalExtensionAutoAcknowledgement
  #else
  #define MAYBE_ExternalExtensionAutoAcknowledgement ExternalExtensionAutoAcknowledgement
  #endif
  TEST_F(ExtensionServiceTest, MAYBE_ExternalExtensionAutoAcknowledgement) {
    InitializeEmptyExtensionService();
    service()->set_extensions_enabled(true);
  
    {
      // Register and install an external extension.
      MockExtensionProvider* provider =
          new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
      AddMockExternalProvider(provider);
      provider->UpdateOrAddExtension(
          good_crx, "1.0.0.0", data_dir().AppendASCII("good.crx"));
    }
    {
      // Have policy force-install an extension.
      MockExtensionProvider* provider = new MockExtensionProvider(
          service(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
      AddMockExternalProvider(provider);
      provider->UpdateOrAddExtension(
          page_action, "1.0.0.0", data_dir().AppendASCII("page_action.crx"));
    }
  
    // Providers are set up. Let them run.
    int count = 2;
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        base::Bind(&WaitForCountNotificationsCallback, &count));
    service()->CheckForExternalUpdates();
  
    observer.Wait();
  
    ASSERT_EQ(2u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
    EXPECT_TRUE(service()->GetExtensionById(page_action, false));
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
    ASSERT_TRUE(!prefs->IsExternalExtensionAcknowledged(good_crx));
    ASSERT_TRUE(prefs->IsExternalExtensionAcknowledged(page_action));
  }
  
  #if !defined(OS_CHROMEOS)
  // This tests if default apps are installed correctly.
  TEST_F(ExtensionServiceTest, DefaultAppsInstall) {
    InitializeEmptyExtensionService();
    service()->set_extensions_enabled(true);
  
    {
      std::string json_data =
          "{"
          "  \"ldnnhddmnhbkjipkidpdiheffobcpfmf\" : {"
          "    \"external_crx\": \"good.crx\","
          "    \"external_version\": \"1.0.0.0\","
          "    \"is_bookmark_app\": false"
          "  }"
          "}";
      default_apps::Provider* provider = new default_apps::Provider(
          profile(),
          service(),
          new extensions::ExternalTestingLoader(json_data, data_dir()),
          Manifest::INTERNAL,
          Manifest::INVALID_LOCATION,
          Extension::FROM_WEBSTORE | Extension::WAS_INSTALLED_BY_DEFAULT);
  
      AddMockExternalProvider(provider);
    }
  
    ASSERT_EQ(0u, registry()->enabled_extensions().size());
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
  
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
    const Extension* extension = service()->GetExtensionById(good_crx, false);
    EXPECT_TRUE(extension->from_webstore());
    EXPECT_TRUE(extension->was_installed_by_default());
  }
  #endif
  
  TEST_F(ExtensionServiceTest, UpdatingPendingExternalExtensionWithFlags) {
    // Regression test for crbug.com/627522
    const char kPrefFromBookmark[] = "from_bookmark";
  
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    service()->set_extensions_enabled(true);
  
    // Register and install an external extension.
    std::unique_ptr<base::Version> version(new base::Version("1.0.0.0"));
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        good_crx, std::move(version), path, Manifest::EXTERNAL_PREF,
        Extension::FROM_BOOKMARK, false /* mark_acknowledged */,
        false /* install_immediately */));
    ASSERT_TRUE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(service()->pending_extension_manager()->IsIdPending(good_crx));
  
    // Upgrade to version 2.0, the flag should be preserved.
    path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(good_crx, path, ENABLED);
    ASSERT_TRUE(ValidateBooleanPref(good_crx, kPrefFromBookmark, true));
    const Extension* extension = service()->GetExtensionById(good_crx, false);
    ASSERT_TRUE(extension);
    ASSERT_TRUE(extension->from_bookmark());
  }
  
  // Tests disabling extensions
  TEST_F(ExtensionServiceTest, DisableExtension) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_TRUE(service()->GetExtensionById(good_crx, true));
    EXPECT_TRUE(service()->GetExtensionById(good_crx, false));
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_EQ(0u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  
    // Disable it.
    service()->DisableExtension(good_crx, Extension::DISABLE_USER_ACTION);
  
    EXPECT_TRUE(service()->GetExtensionById(good_crx, true));
    EXPECT_FALSE(service()->GetExtensionById(good_crx, false));
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
    EXPECT_EQ(0u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  }
  
  TEST_F(ExtensionServiceTest, TerminateExtension) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_EQ(0u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  
    TerminateExtension(good_crx);
  
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_EQ(1u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  }
  
  TEST_F(ExtensionServiceTest, DisableTerminatedExtension) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    TerminateExtension(good_crx);
    EXPECT_TRUE(registry()->GetExtensionById(
        good_crx, extensions::ExtensionRegistry::TERMINATED));
  
    // Disable it.
    service()->DisableExtension(good_crx, Extension::DISABLE_USER_ACTION);
  
    EXPECT_FALSE(registry()->GetExtensionById(
        good_crx, extensions::ExtensionRegistry::TERMINATED));
    EXPECT_TRUE(service()->GetExtensionById(good_crx, true));
  
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
    EXPECT_EQ(0u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  }
  
  // Tests disabling all extensions (simulating --disable-extensions flag).
  TEST_F(ExtensionServiceTest, DisableAllExtensions) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    // Disable extensions.
    service()->set_extensions_enabled(false);
    service()->ReloadExtensionsForTest();
  
    // There shouldn't be extensions in either list.
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    // This shouldn't do anything when all extensions are disabled.
    service()->EnableExtension(good_crx);
    service()->ReloadExtensionsForTest();
  
    // There still shouldn't be extensions in either list.
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    // And then re-enable the extensions.
    service()->set_extensions_enabled(true);
    service()->ReloadExtensionsForTest();
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  
  // Tests reloading extensions.
  TEST_F(ExtensionServiceTest, ReloadExtensions) {
    InitializeEmptyExtensionService();
  
    // Simple extension that should install without error.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW,
               Extension::FROM_WEBSTORE | Extension::WAS_INSTALLED_BY_DEFAULT);
    const char* const extension_id = good_crx;
    service()->DisableExtension(extension_id, Extension::DISABLE_USER_ACTION);
  
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
  
    service()->ReloadExtensionsForTest();
  
    // The creation flags should not change when reloading the extension.
    const Extension* extension = service()->GetExtensionById(good_crx, true);
    EXPECT_TRUE(extension->from_webstore());
    EXPECT_TRUE(extension->was_installed_by_default());
    EXPECT_FALSE(extension->from_bookmark());
  
    // Extension counts shouldn't change.
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
  
    service()->EnableExtension(extension_id);
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    // Need to clear |loaded_| manually before reloading as the
    // EnableExtension() call above inserted into it and
    // UnloadAllExtensions() doesn't send out notifications.
    loaded_.clear();
    service()->ReloadExtensionsForTest();
  
    // Extension counts shouldn't change.
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  
  // Tests reloading an extension.
  TEST_F(ExtensionServiceTest, ReloadExtension) {
    InitializeEmptyExtensionService();
  
    // Simple extension that should install without error.
    const char extension_id[] = "behllobkkfkfnphdnhnkndlbkcpglgmj";
    base::FilePath ext = data_dir()
                             .AppendASCII("good")
                             .AppendASCII("Extensions")
                             .AppendASCII(extension_id)
                             .AppendASCII("1.0.0.0");
    extensions::UnpackedInstaller::Create(service())->Load(ext);
    base::RunLoop().RunUntilIdle();
  
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  
    service()->ReloadExtension(extension_id);
  
    // Extension should be disabled now, waiting to be reloaded.
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(1u, registry()->disabled_extensions().size());
    EXPECT_EQ(Extension::DISABLE_RELOAD,
              ExtensionPrefs::Get(profile())->GetDisableReasons(extension_id));
  
    // Reloading again should not crash.
    service()->ReloadExtension(extension_id);
  
    // Finish reloading
    base::RunLoop().RunUntilIdle();
  
    // Extension should be enabled again.
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
  }
  
  TEST_F(ExtensionServiceTest, UninstallExtension) {
    InitializeEmptyExtensionService();
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    UninstallExtension(good_crx, false);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(UnloadedExtensionInfo::REASON_UNINSTALL, unloaded_reason_);
  }
  
  TEST_F(ExtensionServiceTest, UninstallTerminatedExtension) {
    InitializeEmptyExtensionService();
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    TerminateExtension(good_crx);
    UninstallExtension(good_crx, false);
    EXPECT_EQ(UnloadedExtensionInfo::REASON_TERMINATE, unloaded_reason_);
  }
  
  // Tests the uninstaller helper.
  TEST_F(ExtensionServiceTest, UninstallExtensionHelper) {
    InitializeEmptyExtensionService();
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    UninstallExtension(good_crx, true);
    EXPECT_EQ(UnloadedExtensionInfo::REASON_UNINSTALL, unloaded_reason_);
  }
  
  TEST_F(ExtensionServiceTest, UninstallExtensionHelperTerminated) {
    InitializeEmptyExtensionService();
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    TerminateExtension(good_crx);
    UninstallExtension(good_crx, true);
    EXPECT_EQ(UnloadedExtensionInfo::REASON_TERMINATE, unloaded_reason_);
  }
  
  // An extension disabled because of unsupported requirements should re-enabled
  // if updated to a version with supported requirements as long as there are no
  // other disable reasons.
  TEST_F(ExtensionServiceTest, UpgradingRequirementsEnabled) {
    InitializeEmptyExtensionService();
    BlackListWebGL();
  
    base::FilePath path = data_dir().AppendASCII("requirements");
    base::FilePath pem_path =
        data_dir().AppendASCII("requirements").AppendASCII("v1_good.pem");
    const Extension* extension_v1 = PackAndInstallCRX(path.AppendASCII("v1_good"),
                                                      pem_path,
                                                      INSTALL_NEW);
    std::string id = extension_v1->id();
    EXPECT_TRUE(service()->IsExtensionEnabled(id));
  
    base::FilePath v2_bad_requirements_crx = GetTemporaryFile();
  
    PackCRX(path.AppendASCII("v2_bad_requirements"),
            pem_path,
            v2_bad_requirements_crx);
    UpdateExtension(id, v2_bad_requirements_crx, INSTALLED);
    EXPECT_FALSE(service()->IsExtensionEnabled(id));
  
    base::FilePath v3_good_crx = GetTemporaryFile();
  
    PackCRX(path.AppendASCII("v3_good"), pem_path, v3_good_crx);
    UpdateExtension(id, v3_good_crx, ENABLED);
    EXPECT_TRUE(service()->IsExtensionEnabled(id));
  }
  
  // Extensions disabled through user action should stay disabled.
  TEST_F(ExtensionServiceTest, UpgradingRequirementsDisabled) {
    InitializeEmptyExtensionService();
    BlackListWebGL();
  
    base::FilePath path = data_dir().AppendASCII("requirements");
    base::FilePath pem_path =
        data_dir().AppendASCII("requirements").AppendASCII("v1_good.pem");
    const Extension* extension_v1 = PackAndInstallCRX(path.AppendASCII("v1_good"),
                                                      pem_path,
                                                      INSTALL_NEW);
    std::string id = extension_v1->id();
    service()->DisableExtension(id, Extension::DISABLE_USER_ACTION);
    EXPECT_FALSE(service()->IsExtensionEnabled(id));
  
    base::FilePath v2_bad_requirements_crx = GetTemporaryFile();
  
    PackCRX(path.AppendASCII("v2_bad_requirements"),
            pem_path,
            v2_bad_requirements_crx);
    UpdateExtension(id, v2_bad_requirements_crx, INSTALLED);
    EXPECT_FALSE(service()->IsExtensionEnabled(id));
  
    base::FilePath v3_good_crx = GetTemporaryFile();
  
    PackCRX(path.AppendASCII("v3_good"), pem_path, v3_good_crx);
    UpdateExtension(id, v3_good_crx, INSTALLED);
    EXPECT_FALSE(service()->IsExtensionEnabled(id));
  }
  
  // The extension should not re-enabled because it was disabled from a
  // permission increase.
  TEST_F(ExtensionServiceTest, UpgradingRequirementsPermissions) {
    InitializeEmptyExtensionService();
    BlackListWebGL();
  
    base::FilePath path = data_dir().AppendASCII("requirements");
    base::FilePath pem_path =
        data_dir().AppendASCII("requirements").AppendASCII("v1_good.pem");
    const Extension* extension_v1 = PackAndInstallCRX(path.AppendASCII("v1_good"),
                                                      pem_path,
                                                      INSTALL_NEW);
    std::string id = extension_v1->id();
    EXPECT_TRUE(service()->IsExtensionEnabled(id));
  
    base::FilePath v2_bad_requirements_and_permissions_crx = GetTemporaryFile();
  
    PackCRX(path.AppendASCII("v2_bad_requirements_and_permissions"),
            pem_path,
            v2_bad_requirements_and_permissions_crx);
    UpdateExtension(id, v2_bad_requirements_and_permissions_crx, INSTALLED);
    EXPECT_FALSE(service()->IsExtensionEnabled(id));
  
    base::FilePath v3_bad_permissions_crx = GetTemporaryFile();
  
    PackCRX(path.AppendASCII("v3_bad_permissions"),
            pem_path,
            v3_bad_permissions_crx);
    UpdateExtension(id, v3_bad_permissions_crx, INSTALLED);
    EXPECT_FALSE(service()->IsExtensionEnabled(id));
  }
  
  // Unpacked extensions are not allowed to be installed if they have unsupported
  // requirements.
  TEST_F(ExtensionServiceTest, UnpackedRequirements) {
    InitializeEmptyExtensionService();
    BlackListWebGL();
  
    base::FilePath path =
        data_dir().AppendASCII("requirements").AppendASCII("v2_bad_requirements");
    extensions::UnpackedInstaller::Create(service())->Load(path);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1u, GetErrors().size());
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  
  class ExtensionCookieCallback {
   public:
    ExtensionCookieCallback()
      : result_(false),
        weak_factory_(base::MessageLoop::current()) {}
  
    void SetCookieCallback(bool result) {
      base::ThreadTaskRunnerHandle::Get()->PostTask(
          FROM_HERE, base::Bind(&base::MessageLoop::QuitWhenIdle,
                                weak_factory_.GetWeakPtr()));
      result_ = result;
    }
  
    void GetAllCookiesCallback(const net::CookieList& list) {
      base::ThreadTaskRunnerHandle::Get()->PostTask(
          FROM_HERE, base::Bind(&base::MessageLoop::QuitWhenIdle,
                                weak_factory_.GetWeakPtr()));
      list_ = list;
    }
    net::CookieList list_;
    bool result_;
    base::WeakPtrFactory<base::MessageLoop> weak_factory_;
  };
  
  // Verifies extension state is removed upon uninstall.
  TEST_F(ExtensionServiceTest, ClearExtensionData) {
    InitializeEmptyExtensionService();
    ExtensionCookieCallback callback;
  
    // Load a test extension.
    base::FilePath path = data_dir();
    path = path.AppendASCII("good.crx");
    const Extension* extension = InstallCRX(path, INSTALL_NEW);
    ASSERT_TRUE(extension);
    GURL ext_url(extension->url());
    std::string origin_id = storage::GetIdentifierFromOrigin(ext_url);
  
    // Set a cookie for the extension.
    net::CookieStore* cookie_store = profile()->GetRequestContextForExtensions()
                                              ->GetURLRequestContext()
                                              ->cookie_store();
    ASSERT_TRUE(cookie_store);
    net::CookieOptions options;
    cookie_store->SetCookieWithOptionsAsync(
         ext_url, "dummy=value", options,
         base::Bind(&ExtensionCookieCallback::SetCookieCallback,
                    base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(callback.result_);
  
    cookie_store->GetAllCookiesForURLAsync(
        ext_url,
        base::Bind(&ExtensionCookieCallback::GetAllCookiesCallback,
                   base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1U, callback.list_.size());
  
    // Open a database.
    storage::DatabaseTracker* db_tracker =
        BrowserContext::GetDefaultStoragePartition(profile())
            ->GetDatabaseTracker();
    base::string16 db_name = base::UTF8ToUTF16("db");
    base::string16 description = base::UTF8ToUTF16("db_description");
    int64_t size;
    db_tracker->DatabaseOpened(origin_id, db_name, description, 1, &size);
    db_tracker->DatabaseClosed(origin_id, db_name);
    std::vector<storage::OriginInfo> origins;
    db_tracker->GetAllOriginsInfo(&origins);
    EXPECT_EQ(1U, origins.size());
    EXPECT_EQ(origin_id, origins[0].GetOriginIdentifier());
  
    // Create local storage. We only simulate this by creating the backing files.
    // Note: This test depends on details of how the dom_storage library
    // stores data in the host file system.
    base::FilePath lso_dir_path =
        profile()->GetPath().AppendASCII("Local Storage");
    base::FilePath lso_file_path = lso_dir_path.AppendASCII(origin_id)
        .AddExtension(FILE_PATH_LITERAL(".localstorage"));
    EXPECT_TRUE(base::CreateDirectory(lso_dir_path));
    EXPECT_EQ(0, base::WriteFile(lso_file_path, NULL, 0));
    EXPECT_TRUE(base::PathExists(lso_file_path));
  
    // Create indexed db. Similarly, it is enough to only simulate this by
    // creating the directory on the disk.
    IndexedDBContext* idb_context = BrowserContext::GetDefaultStoragePartition(
                                        profile())->GetIndexedDBContext();
    idb_context->SetTaskRunnerForTesting(
        base::ThreadTaskRunnerHandle::Get().get());
    base::FilePath idb_path = idb_context->GetFilePathForTesting(ext_url);
    EXPECT_TRUE(base::CreateDirectory(idb_path));
    EXPECT_TRUE(base::DirectoryExists(idb_path));
  
    // Uninstall the extension.
    base::RunLoop run_loop;
    ASSERT_TRUE(
        service()->UninstallExtension(good_crx,
                                      extensions::UNINSTALL_REASON_FOR_TESTING,
                                      run_loop.QuitClosure(),
                                      NULL));
    // The data deletion happens on the IO thread.
    run_loop.Run();
  
    // Check that the cookie is gone.
    cookie_store->GetAllCookiesForURLAsync(
         ext_url,
         base::Bind(&ExtensionCookieCallback::GetAllCookiesCallback,
                    base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0U, callback.list_.size());
  
    // The database should have vanished as well.
    origins.clear();
    db_tracker->GetAllOriginsInfo(&origins);
    EXPECT_EQ(0U, origins.size());
  
    // Check that the LSO file has been removed.
    EXPECT_FALSE(base::PathExists(lso_file_path));
  
    // Check if the indexed db has disappeared too.
    EXPECT_FALSE(base::DirectoryExists(idb_path));
  }
  
  // Verifies app state is removed upon uninstall.
  TEST_F(ExtensionServiceTest, ClearAppData) {
    InitializeEmptyExtensionService();
    ExtensionCookieCallback callback;
  
    int pref_count = 0;
  
    // Install app1 with unlimited storage.
    const Extension* extension =
        PackAndInstallCRX(data_dir().AppendASCII("app1"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    const std::string id1 = extension->id();
    EXPECT_TRUE(extension->permissions_data()->HasAPIPermission(
        APIPermission::kUnlimitedStorage));
    const GURL origin1(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension).GetOrigin());
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        origin1));
    std::string origin_id = storage::GetIdentifierFromOrigin(origin1);
  
    // Install app2 from the same origin with unlimited storage.
    extension = PackAndInstallCRX(data_dir().AppendASCII("app2"), INSTALL_NEW);
    ValidatePrefKeyCount(++pref_count);
    ASSERT_EQ(2u, registry()->enabled_extensions().size());
    const std::string id2 = extension->id();
    EXPECT_TRUE(extension->permissions_data()->HasAPIPermission(
        APIPermission::kUnlimitedStorage));
    EXPECT_TRUE(extension->web_extent().MatchesURL(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension)));
    const GURL origin2(
        extensions::AppLaunchInfo::GetFullLaunchURL(extension).GetOrigin());
    EXPECT_EQ(origin1, origin2);
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        origin2));
  
    // Set a cookie for the extension.
    net::CookieStore* cookie_store = profile()->GetRequestContext()
                                              ->GetURLRequestContext()
                                              ->cookie_store();
    ASSERT_TRUE(cookie_store);
    net::CookieOptions options;
    cookie_store->SetCookieWithOptionsAsync(
         origin1, "dummy=value", options,
         base::Bind(&ExtensionCookieCallback::SetCookieCallback,
                    base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(callback.result_);
  
    cookie_store->GetAllCookiesForURLAsync(
        origin1,
        base::Bind(&ExtensionCookieCallback::GetAllCookiesCallback,
                   base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1U, callback.list_.size());
  
    // Open a database.
    storage::DatabaseTracker* db_tracker =
        BrowserContext::GetDefaultStoragePartition(profile())
            ->GetDatabaseTracker();
    base::string16 db_name = base::UTF8ToUTF16("db");
    base::string16 description = base::UTF8ToUTF16("db_description");
    int64_t size;
    db_tracker->DatabaseOpened(origin_id, db_name, description, 1, &size);
    db_tracker->DatabaseClosed(origin_id, db_name);
    std::vector<storage::OriginInfo> origins;
    db_tracker->GetAllOriginsInfo(&origins);
    EXPECT_EQ(1U, origins.size());
    EXPECT_EQ(origin_id, origins[0].GetOriginIdentifier());
  
    // Create local storage. We only simulate this by creating the backing files.
    // Note: This test depends on details of how the dom_storage library
    // stores data in the host file system.
    base::FilePath lso_dir_path =
        profile()->GetPath().AppendASCII("Local Storage");
    base::FilePath lso_file_path = lso_dir_path.AppendASCII(origin_id)
        .AddExtension(FILE_PATH_LITERAL(".localstorage"));
    EXPECT_TRUE(base::CreateDirectory(lso_dir_path));
    EXPECT_EQ(0, base::WriteFile(lso_file_path, NULL, 0));
    EXPECT_TRUE(base::PathExists(lso_file_path));
  
    // Create indexed db. Similarly, it is enough to only simulate this by
    // creating the directory on the disk.
    IndexedDBContext* idb_context = BrowserContext::GetDefaultStoragePartition(
                                        profile())->GetIndexedDBContext();
    idb_context->SetTaskRunnerForTesting(
        base::ThreadTaskRunnerHandle::Get().get());
    base::FilePath idb_path = idb_context->GetFilePathForTesting(origin1);
    EXPECT_TRUE(base::CreateDirectory(idb_path));
    EXPECT_TRUE(base::DirectoryExists(idb_path));
  
    // Uninstall one of them, unlimited storage should still be granted
    // to the origin.
    UninstallExtension(id1, false);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        origin1));
  
    // Check that the cookie is still there.
    cookie_store->GetAllCookiesForURLAsync(
         origin1,
         base::Bind(&ExtensionCookieCallback::GetAllCookiesCallback,
                    base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1U, callback.list_.size());
  
    // Now uninstall the other. Storage should be cleared for the apps.
    UninstallExtension(id2, false);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_FALSE(
        profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
            origin1));
  
    // Check that the cookie is gone.
    cookie_store->GetAllCookiesForURLAsync(
         origin1,
         base::Bind(&ExtensionCookieCallback::GetAllCookiesCallback,
                    base::Unretained(&callback)));
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0U, callback.list_.size());
  
    // The database should have vanished as well.
    origins.clear();
    db_tracker->GetAllOriginsInfo(&origins);
    EXPECT_EQ(0U, origins.size());
  
    // Check that the LSO file has been removed.
    EXPECT_FALSE(base::PathExists(lso_file_path));
  
    // Check if the indexed db has disappeared too.
    EXPECT_FALSE(base::DirectoryExists(idb_path));
  }
  
  // Tests loading single extensions (like --load-extension)
  // Flaky crashes. http://crbug.com/231806
  TEST_F(ExtensionServiceTest, DISABLED_LoadExtension) {
    InitializeEmptyExtensionService();
  
    base::FilePath ext1 = data_dir()
                              .AppendASCII("good")
                              .AppendASCII("Extensions")
                              .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
                              .AppendASCII("1.0.0.0");
    extensions::UnpackedInstaller::Create(service())->Load(ext1);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(Manifest::UNPACKED, loaded_[0]->location());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    ValidatePrefKeyCount(1);
  
    base::FilePath no_manifest =
        data_dir()
            .AppendASCII("bad")
            // .AppendASCII("Extensions")
            .AppendASCII("cccccccccccccccccccccccccccccccc")
            .AppendASCII("1");
    extensions::UnpackedInstaller::Create(service())->Load(no_manifest);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    // Test uninstall.
    std::string id = loaded_[0]->id();
    EXPECT_FALSE(unloaded_id_.length());
    service()->UninstallExtension(id,
                                  extensions::UNINSTALL_REASON_FOR_TESTING,
                                  base::Bind(&base::DoNothing),
                                  NULL);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(id, unloaded_id_);
    ASSERT_EQ(0u, loaded_.size());
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
  }
  
  // Tests that we generate IDs when they are not specified in the manifest for
  // --load-extension.
  TEST_F(ExtensionServiceTest, GenerateID) {
    InitializeEmptyExtensionService();
  
    base::FilePath no_id_ext = data_dir().AppendASCII("no_id");
    extensions::UnpackedInstaller::Create(service())->Load(no_id_ext);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    ASSERT_TRUE(crx_file::id_util::IdIsValid(loaded_[0]->id()));
    EXPECT_EQ(loaded_[0]->location(), Manifest::UNPACKED);
  
    ValidatePrefKeyCount(1);
  
    std::string previous_id = loaded_[0]->id();
  
    // If we reload the same path, we should get the same extension ID.
    extensions::UnpackedInstaller::Create(service())->Load(no_id_ext);
    base::RunLoop().RunUntilIdle();
    ASSERT_EQ(1u, loaded_.size());
    ASSERT_EQ(previous_id, loaded_[0]->id());
  }
  
  TEST_F(ExtensionServiceTest, UnpackedValidatesLocales) {
    InitializeEmptyExtensionService();
  
    base::FilePath bad_locale =
        data_dir().AppendASCII("unpacked").AppendASCII("bad_messages_file");
    extensions::UnpackedInstaller::Create(service())->Load(bad_locale);
    base::RunLoop().RunUntilIdle();
    EXPECT_EQ(1u, GetErrors().size());
    base::FilePath ms_messages_file = bad_locale.AppendASCII("_locales")
                                                .AppendASCII("ms")
                                                .AppendASCII("messages.json");
    EXPECT_THAT(base::UTF16ToUTF8(GetErrors()[0]), testing::AllOf(
         testing::HasSubstr(
             base::UTF16ToUTF8(ms_messages_file.LossyDisplayName())),
         testing::HasSubstr("Dictionary keys must be quoted.")));
    ASSERT_EQ(0u, loaded_.size());
  }
  
  void ExtensionServiceTest::TestExternalProvider(
      MockExtensionProvider* provider, Manifest::Location location) {
    // Verify that starting with no providers loads no extensions.
    service()->Init();
    ASSERT_EQ(0u, loaded_.size());
  
    provider->set_visit_count(0);
  
    // Register a test extension externally using the mock registry provider.
    base::FilePath source_path = data_dir().AppendASCII("good.crx");
  
    // Add the extension.
    provider->UpdateOrAddExtension(good_crx, "1.0.0.0", source_path);
  
    // Reloading extensions should find our externally registered extension
    // and install it.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
  
    ASSERT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    ASSERT_EQ(location, loaded_[0]->location());
    ASSERT_EQ("1.0.0.0", loaded_[0]->version()->GetString());
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", location);
  
    // Reload extensions without changing anything. The extension should be
    // loaded again.
    loaded_.clear();
    service()->ReloadExtensionsForTest();
    base::RunLoop().RunUntilIdle();
    ASSERT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", location);
  
    // Now update the extension with a new version. We should get upgraded.
    source_path = source_path.DirName().AppendASCII("good2.crx");
    provider->UpdateOrAddExtension(good_crx, "1.0.0.1", source_path);
  
    loaded_.clear();
    content::WindowedNotificationObserver observer_2(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer_2.Wait();
    ASSERT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    ASSERT_EQ("1.0.0.1", loaded_[0]->version()->GetString());
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", location);
  
    // Uninstall the extension and reload. Nothing should happen because the
    // preference should prevent us from reinstalling.
    std::string id = loaded_[0]->id();
    bool no_uninstall =
        GetManagementPolicy()->MustRemainEnabled(loaded_[0].get(), NULL);
    service()->UninstallExtension(id,
                                  extensions::UNINSTALL_REASON_FOR_TESTING,
                                  base::Bind(&base::DoNothing),
                                  NULL);
    base::RunLoop().RunUntilIdle();
  
    base::FilePath install_path = extensions_install_dir().AppendASCII(id);
    if (no_uninstall) {
      // Policy controlled extensions should not have been touched by uninstall.
      ASSERT_TRUE(base::PathExists(install_path));
    } else {
      // The extension should also be gone from the install directory.
      ASSERT_FALSE(base::PathExists(install_path));
      loaded_.clear();
      service()->CheckForExternalUpdates();
      base::RunLoop().RunUntilIdle();
      ASSERT_EQ(0u, loaded_.size());
      ValidatePrefKeyCount(1);
      ValidateIntegerPref(good_crx, "state",
                          Extension::EXTERNAL_EXTENSION_UNINSTALLED);
      ValidateIntegerPref(good_crx, "location", location);
  
      // Now clear the preference and reinstall.
      SetPrefInteg(good_crx, "state", Extension::ENABLED);
  
      loaded_.clear();
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      service()->CheckForExternalUpdates();
      observer.Wait();
      ASSERT_EQ(1u, loaded_.size());
    }
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", location);
  
    if (GetManagementPolicy()->MustRemainEnabled(loaded_[0].get(), NULL)) {
      EXPECT_EQ(2, provider->visit_count());
    } else {
      // Now test an externally triggered uninstall (deleting the registry key or
      // the pref entry).
      provider->RemoveExtension(good_crx);
  
      loaded_.clear();
      service()->OnExternalProviderReady(provider);
      base::RunLoop().RunUntilIdle();
      ASSERT_EQ(0u, loaded_.size());
      ValidatePrefKeyCount(0);
  
      // The extension should also be gone from the install directory.
      ASSERT_FALSE(base::PathExists(install_path));
  
      // Now test the case where user uninstalls and then the extension is removed
      // from the external provider.
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      provider->UpdateOrAddExtension(good_crx, "1.0.0.1", source_path);
      service()->CheckForExternalUpdates();
      observer.Wait();
  
      ASSERT_EQ(1u, loaded_.size());
      ASSERT_EQ(0u, GetErrors().size());
  
      // User uninstalls.
      loaded_.clear();
      service()->UninstallExtension(id,
                                    extensions::UNINSTALL_REASON_FOR_TESTING,
                                    base::Bind(&base::DoNothing),
                                    NULL);
      base::RunLoop().RunUntilIdle();
      ASSERT_EQ(0u, loaded_.size());
  
      // Then remove the extension from the extension provider.
      provider->RemoveExtension(good_crx);
  
      // Should still be at 0.
      loaded_.clear();
      extensions::InstalledLoader(service()).LoadAllExtensions();
      base::RunLoop().RunUntilIdle();
      ASSERT_EQ(0u, loaded_.size());
      ValidatePrefKeyCount(1);
  
      EXPECT_EQ(5, provider->visit_count());
    }
  }
  
  // Tests the external installation feature
  #if defined(OS_WIN)
  TEST_F(ExtensionServiceTest, ExternalInstallRegistry) {
    // This should all work, even when normal extension installation is disabled.
    InitializeEmptyExtensionService();
    service()->set_extensions_enabled(false);
  
    // Now add providers. Extension system takes ownership of the objects.
    MockExtensionProvider* reg_provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_REGISTRY);
    AddMockExternalProvider(reg_provider);
    TestExternalProvider(reg_provider, Manifest::EXTERNAL_REGISTRY);
  }
  #endif
  
  TEST_F(ExtensionServiceTest, ExternalInstallPref) {
    InitializeEmptyExtensionService();
  
    // Now add providers. Extension system takes ownership of the objects.
    MockExtensionProvider* pref_provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
  
    AddMockExternalProvider(pref_provider);
    TestExternalProvider(pref_provider, Manifest::EXTERNAL_PREF);
  }
  
  TEST_F(ExtensionServiceTest, ExternalInstallPrefUpdateUrl) {
    // This should all work, even when normal extension installation is disabled.
    InitializeEmptyExtensionService();
    service()->set_extensions_enabled(false);
  
    // TODO(skerner): The mock provider is not a good model of a provider
    // that works with update URLs, because it adds file and version info.
    // Extend the mock to work with update URLs.  This test checks the
    // behavior that is common to all external extension visitors.  The
    // browser test ExtensionManagementTest.ExternalUrlUpdate tests that
    // what the visitor does results in an extension being downloaded and
    // installed.
    MockExtensionProvider* pref_provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF_DOWNLOAD);
    AddMockExternalProvider(pref_provider);
    TestExternalProvider(pref_provider, Manifest::EXTERNAL_PREF_DOWNLOAD);
  }
  
  TEST_F(ExtensionServiceTest, ExternalInstallPolicyUpdateUrl) {
    // This should all work, even when normal extension installation is disabled.
    InitializeEmptyExtensionService();
    service()->set_extensions_enabled(false);
  
    // TODO(skerner): The mock provider is not a good model of a provider
    // that works with update URLs, because it adds file and version info.
    // Extend the mock to work with update URLs. This test checks the
    // behavior that is common to all external extension visitors. The
    // browser test ExtensionManagementTest.ExternalUrlUpdate tests that
    // what the visitor does results in an extension being downloaded and
    // installed.
    MockExtensionProvider* pref_provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_POLICY_DOWNLOAD);
    AddMockExternalProvider(pref_provider);
    TestExternalProvider(pref_provider, Manifest::EXTERNAL_POLICY_DOWNLOAD);
  }
  
  // Tests that external extensions get uninstalled when the external extension
  // providers can't account for them.
  TEST_F(ExtensionServiceTest, ExternalUninstall) {
    // Start the extensions service with one external extension already installed.
    base::FilePath source_install_dir =
        data_dir().AppendASCII("good").AppendASCII("Extensions");
    base::FilePath pref_path = source_install_dir
        .DirName()
        .AppendASCII("PreferencesExternal");
  
    // This initializes the extensions service with no ExternalProviders.
    InitializeInstalledExtensionService(pref_path, source_install_dir);
    service()->set_extensions_enabled(false);
  
    service()->Init();
  
    ASSERT_EQ(0u, GetErrors().size());
    ASSERT_EQ(0u, loaded_.size());
  
    // Verify that it's not the disabled extensions flag causing it not to load.
    service()->set_extensions_enabled(true);
    service()->ReloadExtensionsForTest();
    base::RunLoop().RunUntilIdle();
  
    ASSERT_EQ(0u, GetErrors().size());
    ASSERT_EQ(0u, loaded_.size());
  }
  
  // Test that running multiple update checks simultaneously does not
  // keep the update from succeeding.
  TEST_F(ExtensionServiceTest, MultipleExternalUpdateCheck) {
    InitializeEmptyExtensionService();
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
  
    // Verify that starting with no providers loads no extensions.
    service()->Init();
    ASSERT_EQ(0u, loaded_.size());
  
    // Start two checks for updates.
    provider->set_visit_count(0);
    service()->CheckForExternalUpdates();
    service()->CheckForExternalUpdates();
    base::RunLoop().RunUntilIdle();
  
    // Two calls should cause two checks for external extensions.
    EXPECT_EQ(2, provider->visit_count());
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(0u, loaded_.size());
  
    // Register a test extension externally using the mock registry provider.
    base::FilePath source_path = data_dir().AppendASCII("good.crx");
    provider->UpdateOrAddExtension(good_crx, "1.0.0.0", source_path);
  
    // Two checks for external updates should find the extension, and install it
    // once.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    provider->set_visit_count(0);
    service()->CheckForExternalUpdates();
    service()->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_EQ(2, provider->visit_count());
    ASSERT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    ASSERT_EQ(Manifest::EXTERNAL_PREF, loaded_[0]->location());
    ASSERT_EQ("1.0.0.0", loaded_[0]->version()->GetString());
    ValidatePrefKeyCount(1);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", Manifest::EXTERNAL_PREF);
  
    provider->RemoveExtension(good_crx);
    provider->set_visit_count(0);
    service()->CheckForExternalUpdates();
    service()->CheckForExternalUpdates();
    base::RunLoop().RunUntilIdle();
  
    // Two calls should cause two checks for external extensions.
    // Because the external source no longer includes good_crx,
    // good_crx will be uninstalled.  So, expect that no extensions
    // are loaded.
    EXPECT_EQ(2, provider->visit_count());
    EXPECT_EQ(0u, GetErrors().size());
    EXPECT_EQ(0u, loaded_.size());
  }
  
  TEST_F(ExtensionServiceTest, ExternalPrefProvider) {
    InitializeEmptyExtensionService();
  
    // Test some valid extension records.
    // Set a base path to avoid erroring out on relative paths.
    // Paths starting with // are absolute on every platform we support.
    base::FilePath base_path(FILE_PATH_LITERAL("//base/path"));
    ASSERT_TRUE(base_path.IsAbsolute());
    MockProviderVisitor visitor(base_path);
    std::string json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\""
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"2.0\""
        "  },"
        "  \"cccccccccccccccccccccccccccccccc\": {"
        "    \"external_update_url\": \"http:\\\\foo.com/update\","
        "    \"install_parameter\": \"id\""
        "  }"
        "}";
    EXPECT_EQ(3, visitor.Visit(json_data));
  
    // Simulate an external_extensions.json file that contains seven invalid
    // records:
    // - One that is missing the 'external_crx' key.
    // - One that is missing the 'external_version' key.
    // - One that is specifying .. in the path.
    // - One that specifies both a file and update URL.
    // - One that specifies no file or update URL.
    // - One that has an update URL that is not well formed.
    // - One that contains a malformed version.
    // - One that has an invalid id.
    // - One that has a non-dictionary value.
    // - One that has an integer 'external_version' instead of a string.
    // The final extension is valid, and we check that it is read to make sure
    // failures don't stop valid records from being read.
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_version\": \"1.0\""
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension.crx\""
        "  },"
        "  \"cccccccccccccccccccccccccccccccc\": {"
        "    \"external_crx\": \"..\\\\foo\\\\RandomExtension2.crx\","
        "    \"external_version\": \"2.0\""
        "  },"
        "  \"dddddddddddddddddddddddddddddddd\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"2.0\","
        "    \"external_update_url\": \"http:\\\\foo.com/update\""
        "  },"
        "  \"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\": {"
        "  },"
        "  \"ffffffffffffffffffffffffffffffff\": {"
        "    \"external_update_url\": \"This string is not a valid URL\""
        "  },"
        "  \"gggggggggggggggggggggggggggggggg\": {"
        "    \"external_crx\": \"RandomExtension3.crx\","
        "    \"external_version\": \"This is not a valid version!\""
        "  },"
        "  \"This is not a valid id!\": {},"
        "  \"hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\": true,"
        "  \"iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii\": {"
        "    \"external_crx\": \"RandomExtension4.crx\","
        "    \"external_version\": 1.0"
        "  },"
        "  \"pppppppppppppppppppppppppppppppp\": {"
        "    \"external_crx\": \"RandomValidExtension.crx\","
        "    \"external_version\": \"1.0\""
        "  }"
        "}";
    EXPECT_EQ(1, visitor.Visit(json_data));
  
    // Check that if a base path is not provided, use of a relative
    // path fails.
    base::FilePath empty;
    MockProviderVisitor visitor_no_relative_paths(empty);
  
    // Use absolute paths.  Expect success.
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"//RandomExtension1.crx\","
        "    \"external_version\": \"3.0\""
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"//path/to/RandomExtension2.crx\","
        "    \"external_version\": \"3.0\""
        "  }"
        "}";
    EXPECT_EQ(2, visitor_no_relative_paths.Visit(json_data));
  
    // Use a relative path.  Expect that it will error out.
    json_data =
        "{"
        "  \"cccccccccccccccccccccccccccccccc\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"3.0\""
        "  }"
        "}";
    EXPECT_EQ(0, visitor_no_relative_paths.Visit(json_data));
  
    // Test supported_locales.
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"supported_locales\": [ \"en\" ]"
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"2.0\","
        "    \"supported_locales\": [ \"en-GB\" ]"
        "  },"
        "  \"cccccccccccccccccccccccccccccccc\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"3.0\","
        "    \"supported_locales\": [ \"en_US\", \"fr\" ]"
        "  }"
        "}";
    {
      ScopedBrowserLocale guard("en-US");
      EXPECT_EQ(2, visitor.Visit(json_data));
    }
  
    // Test keep_if_present.
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"keep_if_present\": true"
        "  }"
        "}";
    {
      EXPECT_EQ(0, visitor.Visit(json_data));
    }
  
    // Test is_bookmark_app.
    MockProviderVisitor from_bookmark_visitor(
        base_path, Extension::FROM_BOOKMARK);
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"is_bookmark_app\": true"
        "  }"
        "}";
    EXPECT_EQ(1, from_bookmark_visitor.Visit(json_data));
  
    // Test is_from_webstore.
    MockProviderVisitor from_webstore_visitor(
        base_path, Extension::FROM_WEBSTORE);
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"is_from_webstore\": true"
        "  }"
        "}";
    EXPECT_EQ(1, from_webstore_visitor.Visit(json_data));
  
    // Test was_installed_by_eom.
    MockProviderVisitor was_installed_by_eom_visitor(
        base_path, Extension::WAS_INSTALLED_BY_OEM);
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"was_installed_by_oem\": true"
        "  }"
        "}";
    EXPECT_EQ(1, was_installed_by_eom_visitor.Visit(json_data));
  
    // Test min_profile_created_by_version.
    MockProviderVisitor min_profile_created_by_version_visitor(base_path);
    json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"min_profile_created_by_version\": \"42.0.0.1\""
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"1.0\","
        "    \"min_profile_created_by_version\": \"43.0.0.1\""
        "  },"
        "  \"cccccccccccccccccccccccccccccccc\": {"
        "    \"external_crx\": \"RandomExtension3.crx\","
        "    \"external_version\": \"3.0\","
        "    \"min_profile_created_by_version\": \"44.0.0.1\""
        "  }"
        "}";
    min_profile_created_by_version_visitor.profile()->GetPrefs()->SetString(
        prefs::kProfileCreatedByVersion, "40.0.0.1");
    EXPECT_EQ(0, min_profile_created_by_version_visitor.Visit(json_data));
    min_profile_created_by_version_visitor.profile()->GetPrefs()->SetString(
        prefs::kProfileCreatedByVersion, "43.0.0.1");
    EXPECT_EQ(2, min_profile_created_by_version_visitor.Visit(json_data));
    min_profile_created_by_version_visitor.profile()->GetPrefs()->SetString(
        prefs::kProfileCreatedByVersion, "45.0.0.1");
    EXPECT_EQ(3, min_profile_created_by_version_visitor.Visit(json_data));
  }
  
  TEST_F(ExtensionServiceTest, DoNotInstallForEnterprise) {
    InitializeEmptyExtensionService();
  
    const base::FilePath base_path(FILE_PATH_LITERAL("//base/path"));
    ASSERT_TRUE(base_path.IsAbsolute());
    MockProviderVisitor visitor(base_path);
    policy::ProfilePolicyConnector* const connector =
        policy::ProfilePolicyConnectorFactory::GetForBrowserContext(
            visitor.profile());
    connector->OverrideIsManagedForTesting(true);
    EXPECT_TRUE(connector->IsManaged());
  
    std::string json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\","
        "    \"do_not_install_for_enterprise\": true"
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"1.0\""
        "  }"
        "}";
    EXPECT_EQ(1, visitor.Visit(json_data));
  }
  
  TEST_F(ExtensionServiceTest, IncrementalUpdateThroughRegistry) {
    InitializeEmptyExtensionService();
  
    // Test some valid extension records.
    // Set a base path to avoid erroring out on relative paths.
    // Paths starting with // are absolute on every platform we support.
    base::FilePath base_path(FILE_PATH_LITERAL("//base/path"));
    ASSERT_TRUE(base_path.IsAbsolute());
    MockUpdateProviderVisitor visitor(base_path);
    std::string json_data =
        "{"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\""
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"2.0\""
        "  },"
        "  \"cccccccccccccccccccccccccccccccc\": {"
        "    \"external_update_url\": \"http:\\\\foo.com/update\","
        "    \"install_parameter\": \"id\""
        "  }"
        "}";
    EXPECT_EQ(3, visitor.Visit(json_data, Manifest::EXTERNAL_REGISTRY,
                               Manifest::EXTERNAL_PREF_DOWNLOAD));
  
    // c* removed and d*, e*, f* added, a*, b* existing.
    json_data =
        "{"
        "  \"dddddddddddddddddddddddddddddddd\": {"
        "    \"external_crx\": \"RandomExtension3.crx\","
        "    \"external_version\": \"1.0\""
        "  },"
        "  \"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\": {"
        "    \"external_update_url\": \"http:\\\\foo.com/update\","
        "    \"install_parameter\": \"id\""
        "  },"
        "  \"ffffffffffffffffffffffffffffffff\": {"
        "    \"external_update_url\": \"http:\\\\bar.com/update\","
        "    \"install_parameter\": \"id\""
        "  },"
        "  \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\": {"
        "    \"external_crx\": \"RandomExtension.crx\","
        "    \"external_version\": \"1.0\""
        "  },"
        "  \"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\": {"
        "    \"external_crx\": \"RandomExtension2.crx\","
        "    \"external_version\": \"2.0\""
        "  }"
        "}";
  
    // This will simulate registry loader observing new changes in registry and
    // hence will discover new extensions.
    visitor.VisitDueToUpdate(json_data);
  
    // UpdateUrl.
    EXPECT_EQ(2u, visitor.GetUpdateURLExtensionCount());
    EXPECT_TRUE(
        visitor.HasSeenUpdateWithUpdateUrl("eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"));
    EXPECT_TRUE(
        visitor.HasSeenUpdateWithUpdateUrl("ffffffffffffffffffffffffffffffff"));
  
    // File.
    EXPECT_EQ(3u, visitor.GetFileExtensionCount());
    EXPECT_TRUE(
        visitor.HasSeenUpdateWithFile("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"));
    EXPECT_TRUE(
        visitor.HasSeenUpdateWithFile("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"));
    EXPECT_TRUE(
        visitor.HasSeenUpdateWithFile("dddddddddddddddddddddddddddddddd"));
  
    // Removed extensions.
    EXPECT_EQ(1u, visitor.GetRemovedExtensionCount());
    EXPECT_TRUE(visitor.HasSeenRemoval("cccccccccccccccccccccccccccccccc"));
  
    // Simulate all 5 extensions being removed.
    json_data = "{}";
    visitor.VisitDueToUpdate(json_data);
    EXPECT_EQ(0u, visitor.GetUpdateURLExtensionCount());
    EXPECT_EQ(0u, visitor.GetFileExtensionCount());
    EXPECT_EQ(5u, visitor.GetRemovedExtensionCount());
  }
  
  // Test loading good extensions from the profile directory.
  TEST_F(ExtensionServiceTest, LoadAndRelocalizeExtensions) {
    // Ensure we're testing in "en" and leave global state untouched.
    extension_l10n_util::ScopedLocaleForTest testLocale("en");
  
    // Initialize the test dir with a good Preferences/extensions.
    base::FilePath source_install_dir = data_dir().AppendASCII("l10n");
    base::FilePath pref_path =
        source_install_dir.Append(chrome::kPreferencesFilename);
    InitializeInstalledExtensionService(pref_path, source_install_dir);
  
    service()->Init();
  
    ASSERT_EQ(3u, loaded_.size());
  
    // This was equal to "sr" on load.
    ValidateStringPref(loaded_[0]->id(), keys::kCurrentLocale, "en");
  
    // These are untouched by re-localization.
    ValidateStringPref(loaded_[1]->id(), keys::kCurrentLocale, "en");
    EXPECT_FALSE(IsPrefExist(loaded_[1]->id(), keys::kCurrentLocale));
  
    // This one starts with Serbian name, and gets re-localized into English.
    EXPECT_EQ("My name is simple.", loaded_[0]->name());
  
    // These are untouched by re-localization.
    EXPECT_EQ("My name is simple.", loaded_[1]->name());
    EXPECT_EQ("no l10n", loaded_[2]->name());
  }
  
  class ExtensionsReadyRecorder : public content::NotificationObserver {
   public:
    ExtensionsReadyRecorder() : ready_(false) {
      registrar_.Add(this,
                     extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED,
                     content::NotificationService::AllSources());
    }
  
    void set_ready(bool value) { ready_ = value; }
    bool ready() { return ready_; }
  
   private:
    void Observe(int type,
                 const content::NotificationSource& source,
                 const content::NotificationDetails& details) override {
      switch (type) {
        case extensions::NOTIFICATION_EXTENSIONS_READY_DEPRECATED:
          ready_ = true;
          break;
        default:
          NOTREACHED();
      }
    }
  
    content::NotificationRegistrar registrar_;
    bool ready_;
  };
  
  // Test that we get enabled/disabled correctly for all the pref/command-line
  // combinations. We don't want to derive from the ExtensionServiceTest class
  // for this test, so we use ExtensionServiceTestSimple.
  //
  // Also tests that we always fire EXTENSIONS_READY, no matter whether we are
  // enabled or not.
  class ExtensionServiceTestSimple : public testing::Test {
    content::TestBrowserThreadBundle thread_bundle_;
  };
  
  TEST_F(ExtensionServiceTestSimple, Enabledness) {
    // Make sure the PluginService singleton is destroyed at the end of the test.
    base::ShadowingAtExitManager at_exit_manager;
  #if defined(ENABLE_PLUGINS)
    content::PluginService::GetInstance()->Init();
  #endif
  
    ExtensionErrorReporter::Init(false);  // no noisy errors
    ExtensionsReadyRecorder recorder;
    std::unique_ptr<TestingProfile> profile(new TestingProfile());
  #if defined OS_CHROMEOS
    chromeos::ScopedTestDeviceSettingsService device_settings_service;
    chromeos::ScopedTestCrosSettings cros_settings;
    std::unique_ptr<chromeos::ScopedTestUserManager> user_manager(
        new chromeos::ScopedTestUserManager);
  #endif
    std::unique_ptr<base::CommandLine> command_line;
    base::FilePath install_dir = profile->GetPath()
        .AppendASCII(extensions::kInstallDirectoryName);
  
    // By default, we are enabled.
    command_line.reset(new base::CommandLine(base::CommandLine::NO_PROGRAM));
    ExtensionService* service = static_cast<extensions::TestExtensionSystem*>(
        ExtensionSystem::Get(profile.get()))->
        CreateExtensionService(
            command_line.get(),
            install_dir,
            false);
    EXPECT_TRUE(service->extensions_enabled());
    service->Init();
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(recorder.ready());
  #if defined OS_CHROMEOS
    user_manager.reset();
  #endif
  
    // If either the command line or pref is set, we are disabled.
    recorder.set_ready(false);
    profile.reset(new TestingProfile());
    command_line->AppendSwitch(switches::kDisableExtensions);
    service = static_cast<extensions::TestExtensionSystem*>(
        ExtensionSystem::Get(profile.get()))->
        CreateExtensionService(
            command_line.get(),
            install_dir,
            false);
    EXPECT_FALSE(service->extensions_enabled());
    service->Init();
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(recorder.ready());
  
    recorder.set_ready(false);
    profile.reset(new TestingProfile());
    profile->GetPrefs()->SetBoolean(prefs::kDisableExtensions, true);
    service = static_cast<extensions::TestExtensionSystem*>(
        ExtensionSystem::Get(profile.get()))->
        CreateExtensionService(
            command_line.get(),
            install_dir,
            false);
    EXPECT_FALSE(service->extensions_enabled());
    service->Init();
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(recorder.ready());
  
    recorder.set_ready(false);
    profile.reset(new TestingProfile());
    profile->GetPrefs()->SetBoolean(prefs::kDisableExtensions, true);
    command_line.reset(new base::CommandLine(base::CommandLine::NO_PROGRAM));
    service = static_cast<extensions::TestExtensionSystem*>(
        ExtensionSystem::Get(profile.get()))->
        CreateExtensionService(
            command_line.get(),
            install_dir,
            false);
    EXPECT_FALSE(service->extensions_enabled());
    service->Init();
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(recorder.ready());
  
    // Explicitly delete all the resources used in this test.
    profile.reset();
    service = NULL;
    // Execute any pending deletion tasks.
    base::RunLoop().RunUntilIdle();
  }
  
  // Test loading extensions that require limited and unlimited storage quotas.
  TEST_F(ExtensionServiceTest, StorageQuota) {
    InitializeEmptyExtensionService();
  
    base::FilePath extensions_path = data_dir().AppendASCII("storage_quota");
  
    base::FilePath limited_quota_ext =
        extensions_path.AppendASCII("limited_quota")
        .AppendASCII("1.0");
  
    // The old permission name for unlimited quota was "unlimited_storage", but
    // we changed it to "unlimitedStorage". This tests both versions.
    base::FilePath unlimited_quota_ext =
        extensions_path.AppendASCII("unlimited_quota")
        .AppendASCII("1.0");
    base::FilePath unlimited_quota_ext2 =
        extensions_path.AppendASCII("unlimited_quota")
        .AppendASCII("2.0");
    extensions::UnpackedInstaller::Create(service())->Load(limited_quota_ext);
    extensions::UnpackedInstaller::Create(service())->Load(unlimited_quota_ext);
    extensions::UnpackedInstaller::Create(service())->Load(unlimited_quota_ext2);
    base::RunLoop().RunUntilIdle();
  
    ASSERT_EQ(3u, loaded_.size());
    EXPECT_TRUE(profile());
    EXPECT_FALSE(profile()->IsOffTheRecord());
    EXPECT_FALSE(
        profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
            loaded_[0]->url()));
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        loaded_[1]->url()));
    EXPECT_TRUE(profile()->GetExtensionSpecialStoragePolicy()->IsStorageUnlimited(
        loaded_[2]->url()));
  }
  
  // Tests ComponentLoader::Add().
  TEST_F(ExtensionServiceTest, ComponentExtensions) {
    InitializeEmptyExtensionService();
  
    // Component extensions should work even when extensions are disabled.
    service()->set_extensions_enabled(false);
  
    base::FilePath path = data_dir()
                              .AppendASCII("good")
                              .AppendASCII("Extensions")
                              .AppendASCII("behllobkkfkfnphdnhnkndlbkcpglgmj")
                              .AppendASCII("1.0.0.0");
  
    std::string manifest;
    ASSERT_TRUE(base::ReadFileToString(
        path.Append(extensions::kManifestFilename), &manifest));
  
    service()->component_loader()->Add(manifest, path);
    service()->Init();
  
    // Note that we do not pump messages -- the extension should be loaded
    // immediately.
  
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, loaded_.size());
    EXPECT_EQ(Manifest::COMPONENT, loaded_[0]->location());
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
  
    // Component extensions get a prefs entry on first install.
    ValidatePrefKeyCount(1);
  
    // Reload all extensions, and make sure it comes back.
    std::string extension_id = (*registry()->enabled_extensions().begin())->id();
    loaded_.clear();
    service()->ReloadExtensionsForTest();
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(extension_id, (*registry()->enabled_extensions().begin())->id());
  }
  
  TEST_F(ExtensionServiceTest, InstallPriorityExternalUpdateUrl) {
    InitializeEmptyExtensionService();
  
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
    ValidatePrefKeyCount(1u);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", Manifest::INTERNAL);
  
    extensions::PendingExtensionManager* pending =
        service()->pending_extension_manager();
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  
    // Skip install when the location is the same.
    std::unique_ptr<GURL> good_update_url(new GURL(kGoodUpdateURL));
    std::unique_ptr<ExternalInstallInfoUpdateUrl> info(
        new ExternalInstallInfoUpdateUrl(
            kGoodId, std::string(), std::move(good_update_url),
            Manifest::INTERNAL, Extension::NO_FLAGS, false));
    EXPECT_FALSE(service()->OnExternalExtensionUpdateUrlFound(*info, true));
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  
    // Install when the location has higher priority.
    info->download_location = Manifest::EXTERNAL_POLICY_DOWNLOAD;
    EXPECT_TRUE(service()->OnExternalExtensionUpdateUrlFound(*info, true));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    // Try the low priority again.  Should be rejected.
    info->download_location = Manifest::EXTERNAL_PREF_DOWNLOAD;
    EXPECT_FALSE(service()->OnExternalExtensionUpdateUrlFound(*info, true));
    // The existing record should still be present in the pending extension
    // manager.
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    pending->Remove(kGoodId);
  
    // Skip install when the location has the same priority as the installed
    // location.
    info->download_location = Manifest::INTERNAL;
    EXPECT_FALSE(service()->OnExternalExtensionUpdateUrlFound(*info, true));
  
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  }
  
  TEST_F(ExtensionServiceTest, InstallPriorityExternalLocalFile) {
    base::Version older_version("0.1.0.0");
    base::Version newer_version("2.0.0.0");
  
    // We don't want the extension to be installed.  A path that doesn't
    // point to a valid CRX ensures this.
    const base::FilePath kInvalidPathToCrx(FILE_PATH_LITERAL("invalid_path"));
  
    const int kCreationFlags = 0;
    const bool kDontMarkAcknowledged = false;
    const bool kDontInstallImmediately = false;
  
    InitializeEmptyExtensionService();
  
    // The test below uses install source constants to test that
    // priority is enforced.  It assumes a specific ranking of install
    // sources: Registry (EXTERNAL_REGISTRY) overrides external pref
    // (EXTERNAL_PREF), and external pref overrides user install (INTERNAL).
    // The following assertions verify these assumptions:
    ASSERT_EQ(Manifest::EXTERNAL_REGISTRY,
              Manifest::GetHigherPriorityLocation(Manifest::EXTERNAL_REGISTRY,
                                                   Manifest::EXTERNAL_PREF));
    ASSERT_EQ(Manifest::EXTERNAL_REGISTRY,
              Manifest::GetHigherPriorityLocation(Manifest::EXTERNAL_REGISTRY,
                                                   Manifest::INTERNAL));
    ASSERT_EQ(Manifest::EXTERNAL_PREF,
              Manifest::GetHigherPriorityLocation(Manifest::EXTERNAL_PREF,
                                                   Manifest::INTERNAL));
  
    extensions::PendingExtensionManager* pending =
        service()->pending_extension_manager();
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  
    std::unique_ptr<base::Version> older_version_ptr(
        new base::Version(older_version));
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        kGoodId, std::move(older_version_ptr), kInvalidPathToCrx,
        Manifest::INTERNAL, kCreationFlags, kDontMarkAcknowledged,
        kDontInstallImmediately));
    {
      // Simulate an external source adding the extension as INTERNAL.
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
      EXPECT_TRUE(pending->IsIdPending(kGoodId));
      observer.Wait();
      VerifyCrxInstall(kInvalidPathToCrx, INSTALL_FAILED);
    }
  
    {
      // Simulate an external source adding the extension as EXTERNAL_PREF.
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      info->crx_location = Manifest::EXTERNAL_PREF;
      EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
      EXPECT_TRUE(pending->IsIdPending(kGoodId));
      observer.Wait();
      VerifyCrxInstall(kInvalidPathToCrx, INSTALL_FAILED);
    }
  
    // Simulate an external source adding as EXTERNAL_PREF again.
    // This is rejected because the version and the location are the same as
    // the previous installation, which is still pending.
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    // Try INTERNAL again.  Should fail.
    info->crx_location = Manifest::INTERNAL;
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    {
      // Now the registry adds the extension.
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      info->crx_location = Manifest::EXTERNAL_REGISTRY;
      EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
      EXPECT_TRUE(pending->IsIdPending(kGoodId));
      observer.Wait();
      VerifyCrxInstall(kInvalidPathToCrx, INSTALL_FAILED);
    }
  
    // Registry outranks both external pref and internal, so both fail.
    info->crx_location = Manifest::EXTERNAL_PREF;
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    info->crx_location = Manifest::INTERNAL;
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    pending->Remove(kGoodId);
  
    // Install the extension.
    base::FilePath path = data_dir().AppendASCII("good.crx");
    const Extension* ext = InstallCRX(path, INSTALL_NEW);
    ValidatePrefKeyCount(1u);
    ValidateIntegerPref(good_crx, "state", Extension::ENABLED);
    ValidateIntegerPref(good_crx, "location", Manifest::INTERNAL);
  
    // Now test the logic of OnExternalExtensionFileFound() when the extension
    // being added is already installed.
  
    // Tests assume |older_version| is less than the installed version, and
    // |newer_version| is greater.  Verify this:
    ASSERT_LT(older_version, *ext->version());
    ASSERT_GT(newer_version, *ext->version());
  
    // An external install for the same location should fail if the version is
    // older, or the same, and succeed if the version is newer.
  
    // Older than the installed version...
    info->version.reset(new base::Version(older_version));
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  
    // Same version as the installed version...
    info->version.reset(new base::Version(ext->VersionString()));
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  
    // Newer than the installed version...
    info->version.reset(new base::Version(newer_version));
    EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    // An external install for a higher priority install source should succeed
    // if the version is greater.  |older_version| is not...
    info->version.reset(new base::Version(older_version));
    info->crx_location = Manifest::EXTERNAL_PREF;
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    // |newer_version| is newer.
    info->version.reset(new base::Version(newer_version));
    EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    // An external install for an even higher priority install source should
    // succeed if the version is greater.
    info->crx_location = Manifest::EXTERNAL_REGISTRY;
    EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  
    // Because EXTERNAL_PREF is a lower priority source than EXTERNAL_REGISTRY,
    // adding from external pref will now fail.
    info->crx_location = Manifest::EXTERNAL_PREF;
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE(pending->IsIdPending(kGoodId));
  }
  
  TEST_F(ExtensionServiceTest, ConcurrentExternalLocalFile) {
    base::Version kVersion123("1.2.3");
    base::Version kVersion124("1.2.4");
    base::Version kVersion125("1.2.5");
    const base::FilePath kInvalidPathToCrx(FILE_PATH_LITERAL("invalid_path"));
    const int kCreationFlags = 0;
    const bool kDontMarkAcknowledged = false;
    const bool kDontInstallImmediately = false;
  
    InitializeEmptyExtensionService();
  
    extensions::PendingExtensionManager* pending =
        service()->pending_extension_manager();
    EXPECT_FALSE(pending->IsIdPending(kGoodId));
  
    // An external provider starts installing from a local crx.
    std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
        kGoodId, base::MakeUnique<base::Version>(kVersion123),
        kInvalidPathToCrx, Manifest::EXTERNAL_PREF, kCreationFlags,
        kDontMarkAcknowledged, kDontInstallImmediately));
    EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
  
    const extensions::PendingExtensionInfo* pending_info;
    EXPECT_TRUE((pending_info = pending->GetById(kGoodId)));
    EXPECT_TRUE(pending_info->version().IsValid());
    EXPECT_EQ(pending_info->version(), kVersion123);
  
    // Adding a newer version overrides the currently pending version.
    info->version.reset(new base::Version(kVersion124));
    EXPECT_TRUE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE((pending_info = pending->GetById(kGoodId)));
    EXPECT_TRUE(pending_info->version().IsValid());
    EXPECT_EQ(pending_info->version(), kVersion124);
  
    // Adding an older version fails.
    info->version.reset(new base::Version(kVersion123));
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE((pending_info = pending->GetById(kGoodId)));
    EXPECT_TRUE(pending_info->version().IsValid());
    EXPECT_EQ(pending_info->version(), kVersion124);
  
    // Adding an older version fails even when coming from a higher-priority
    // location.
    info->crx_location = Manifest::EXTERNAL_REGISTRY;
    EXPECT_FALSE(service()->OnExternalExtensionFileFound(*info));
    EXPECT_TRUE((pending_info = pending->GetById(kGoodId)));
    EXPECT_TRUE(pending_info->version().IsValid());
    EXPECT_EQ(pending_info->version(), kVersion124);
  
    // Adding the latest version from the webstore overrides a specific version.
    GURL kUpdateUrl("http://example.com/update");
    std::unique_ptr<ExternalInstallInfoUpdateUrl> update_info(
        new ExternalInstallInfoUpdateUrl(
            kGoodId, std::string(), base::MakeUnique<GURL>(kUpdateUrl),
            Manifest::EXTERNAL_POLICY_DOWNLOAD, Extension::NO_FLAGS, false));
    EXPECT_TRUE(service()->OnExternalExtensionUpdateUrlFound(*update_info, true));
    EXPECT_TRUE((pending_info = pending->GetById(kGoodId)));
    EXPECT_FALSE(pending_info->version().IsValid());
  }
  
  // This makes sure we can package and install CRX files that use whitelisted
  // permissions.
  TEST_F(ExtensionServiceTest, InstallWhitelistedExtension) {
    std::string test_id = "hdkklepkcpckhnpgjnmbdfhehckloojk";
    base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
        extensions::switches::kWhitelistedExtensionID, test_id);
  
    InitializeEmptyExtensionService();
    base::FilePath path = data_dir().AppendASCII("permissions");
    base::FilePath pem_path = path
        .AppendASCII("whitelist.pem");
    path = path
        .AppendASCII("whitelist");
  
    const Extension* extension = PackAndInstallCRX(path, pem_path, INSTALL_NEW);
    EXPECT_EQ(0u, GetErrors().size());
    ASSERT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(test_id, extension->id());
  }
  
  // Test that when multiple sources try to install an extension,
  // we consistently choose the right one. To make tests easy to read,
  // methods that fake requests to install crx files in several ways
  // are provided.
  class ExtensionSourcePriorityTest : public ExtensionServiceTest {
   public:
    void SetUp() override {
      ExtensionServiceTest::SetUp();
  
      // All tests use a single extension.  Put the id and path in member vars
      // that all methods can read.
      crx_id_ = kGoodId;
      crx_path_ = data_dir().AppendASCII("good.crx");
    }
  
    // Fake an external source adding a URL to fetch an extension from.
    bool AddPendingExternalPrefUrl() {
      return service()->pending_extension_manager()->AddFromExternalUpdateUrl(
          crx_id_,
          std::string(),
          GURL(),
          Manifest::EXTERNAL_PREF_DOWNLOAD,
          Extension::NO_FLAGS,
          false);
    }
  
    // Fake an external file from external_extensions.json.
    bool AddPendingExternalPrefFileInstall() {
      std::unique_ptr<base::Version> version(new base::Version("1.0.0.0"));
      std::unique_ptr<ExternalInstallInfoFile> info(new ExternalInstallInfoFile(
          crx_id_, std::move(version), crx_path_, Manifest::EXTERNAL_PREF,
          Extension::NO_FLAGS, false, false));
      return service()->OnExternalExtensionFileFound(*info);
    }
  
    // Fake a request from sync to install an extension.
    bool AddPendingSyncInstall() {
      return service()->pending_extension_manager()->AddFromSync(
          crx_id_,
          GURL(kGoodUpdateURL),
          base::Version(),
          &IsExtension,
          kGoodRemoteInstall);
    }
  
    // Fake a policy install.
    bool AddPendingPolicyInstall() {
      // Get path to the CRX with id |kGoodId|.
      std::unique_ptr<GURL> empty_url(new GURL());
      std::unique_ptr<ExternalInstallInfoUpdateUrl> info(
          new ExternalInstallInfoUpdateUrl(
              crx_id_, std::string(), std::move(empty_url),
              Manifest::EXTERNAL_POLICY_DOWNLOAD, Extension::NO_FLAGS, false));
      return service()->OnExternalExtensionUpdateUrlFound(*info, true);
    }
  
    // Get the install source of a pending extension.
    Manifest::Location GetPendingLocation() {
      const extensions::PendingExtensionInfo* info;
      EXPECT_TRUE(
          (info = service()->pending_extension_manager()->GetById(crx_id_)));
      return info->install_source();
    }
  
    // Is an extension pending from a sync request?
    bool GetPendingIsFromSync() {
      const extensions::PendingExtensionInfo* info;
      EXPECT_TRUE(
          (info = service()->pending_extension_manager()->GetById(crx_id_)));
      return info->is_from_sync();
    }
  
    // Is the CRX id these tests use pending?
    bool IsCrxPending() {
      return service()->pending_extension_manager()->IsIdPending(crx_id_);
    }
  
    // Is an extension installed?
    bool IsCrxInstalled() {
      return (service()->GetExtensionById(crx_id_, true) != NULL);
    }
  
   protected:
    // All tests use a single extension.  Making the id and path member
    // vars avoids pasing the same argument to every method.
    std::string crx_id_;
    base::FilePath crx_path_;
  };
  
  // Test that a pending request for installation of an external CRX from
  // an update URL overrides a pending request to install the same extension
  // from sync.
  TEST_F(ExtensionSourcePriorityTest, PendingExternalFileOverSync) {
    InitializeEmptyExtensionService();
  
    ASSERT_FALSE(IsCrxInstalled());
  
    // Install pending extension from sync.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    EXPECT_TRUE(AddPendingSyncInstall());
    ASSERT_EQ(Manifest::INTERNAL, GetPendingLocation());
    EXPECT_TRUE(GetPendingIsFromSync());
    ASSERT_FALSE(IsCrxInstalled());
  
    // Install pending as external prefs json would.
    AddPendingExternalPrefFileInstall();
    ASSERT_EQ(Manifest::EXTERNAL_PREF, GetPendingLocation());
    ASSERT_FALSE(IsCrxInstalled());
  
    // Another request from sync should be ignored.
    EXPECT_FALSE(AddPendingSyncInstall());
    ASSERT_EQ(Manifest::EXTERNAL_PREF, GetPendingLocation());
    ASSERT_FALSE(IsCrxInstalled());
  
    observer.Wait();
    VerifyCrxInstall(crx_path_, INSTALL_NEW);
    ASSERT_TRUE(IsCrxInstalled());
  }
  
  // Test that an install of an external CRX from an update overrides
  // an install of the same extension from sync.
  TEST_F(ExtensionSourcePriorityTest, PendingExternalUrlOverSync) {
    InitializeEmptyExtensionService();
    ASSERT_FALSE(IsCrxInstalled());
  
    EXPECT_TRUE(AddPendingSyncInstall());
    ASSERT_EQ(Manifest::INTERNAL, GetPendingLocation());
    EXPECT_TRUE(GetPendingIsFromSync());
    ASSERT_FALSE(IsCrxInstalled());
  
    ASSERT_TRUE(AddPendingExternalPrefUrl());
    ASSERT_EQ(Manifest::EXTERNAL_PREF_DOWNLOAD, GetPendingLocation());
    EXPECT_FALSE(GetPendingIsFromSync());
    ASSERT_FALSE(IsCrxInstalled());
  
    EXPECT_FALSE(AddPendingSyncInstall());
    ASSERT_EQ(Manifest::EXTERNAL_PREF_DOWNLOAD, GetPendingLocation());
    EXPECT_FALSE(GetPendingIsFromSync());
    ASSERT_FALSE(IsCrxInstalled());
  }
  
  // Test that an external install request stops sync from installing
  // the same extension.
  TEST_F(ExtensionSourcePriorityTest, InstallExternalBlocksSyncRequest) {
    InitializeEmptyExtensionService();
    ASSERT_FALSE(IsCrxInstalled());
  
    // External prefs starts an install.
    AddPendingExternalPrefFileInstall();
  
    // Crx installer was made, but has not yet run.
    ASSERT_FALSE(IsCrxInstalled());
  
    // Before the CRX installer runs, Sync requests that the same extension
    // be installed. Should fail, because an external source is pending.
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    ASSERT_FALSE(AddPendingSyncInstall());
  
    // Wait for the external source to install.
    observer.Wait();
    VerifyCrxInstall(crx_path_, INSTALL_NEW);
    ASSERT_TRUE(IsCrxInstalled());
  
    // Now that the extension is installed, sync request should fail
    // because the extension is already installed.
    ASSERT_FALSE(AddPendingSyncInstall());
  }
  
  // Test that installing an external extension displays a GlobalError.
  TEST_F(ExtensionServiceTest, ExternalInstallGlobalError) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    InitializeEmptyExtensionService();
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
  
    service()->external_install_manager()->UpdateExternalExtensionAlert();
    // Should return false, meaning there aren't any extensions that the user
    // needs to know about.
    EXPECT_FALSE(HasExternalInstallErrors(service()));
  
    // This is a normal extension, installed normally.
    // This should NOT trigger an alert.
    service()->set_extensions_enabled(true);
    base::FilePath path = data_dir().AppendASCII("good.crx");
    InstallCRX(path, INSTALL_NEW);
  
    service()->CheckForExternalUpdates();
    base::RunLoop().RunUntilIdle();
    EXPECT_FALSE(HasExternalInstallErrors(service()));
  
    // A hosted app, installed externally.
    // This should NOT trigger an alert.
    provider->UpdateOrAddExtension(
        hosted_app, "1.0.0.0", data_dir().AppendASCII("hosted_app.crx"));
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_FALSE(HasExternalInstallErrors(service()));
  
    // Another normal extension, but installed externally.
    // This SHOULD trigger an alert.
    provider->UpdateOrAddExtension(
        page_action, "1.0.0.0", data_dir().AppendASCII("page_action.crx"));
  
    content::WindowedNotificationObserver observer2(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer2.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service()));
  }
  
  // Test that external extensions are initially disabled, and that enabling
  // them clears the prompt.
  TEST_F(ExtensionServiceTest, ExternalInstallInitiallyDisabled) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    InitializeEmptyExtensionService();
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
  
    provider->UpdateOrAddExtension(
        page_action, "1.0.0.0", data_dir().AppendASCII("page_action.crx"));
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service()));
    EXPECT_FALSE(service()->IsExtensionEnabled(page_action));
  
    const Extension* extension =
        registry()->disabled_extensions().GetByID(page_action);
    EXPECT_TRUE(extension);
    EXPECT_EQ(page_action, extension->id());
  
    service()->EnableExtension(page_action);
    EXPECT_FALSE(HasExternalInstallErrors(service()));
    EXPECT_TRUE(service()->IsExtensionEnabled(page_action));
  }
  
  // Test that installing multiple external extensions works.
  // Flaky on windows; http://crbug.com/295757 .
  // Causes race conditions with an in-process utility thread, so disable under
  // TSan: https://crbug.com/518957
  #if defined(OS_WIN) || defined(THREAD_SANITIZER)
  #define MAYBE_ExternalInstallMultiple DISABLED_ExternalInstallMultiple
  #else
  #define MAYBE_ExternalInstallMultiple ExternalInstallMultiple
  #endif
  TEST_F(ExtensionServiceTest, MAYBE_ExternalInstallMultiple) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    InitializeEmptyExtensionService();
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
  
    provider->UpdateOrAddExtension(
        page_action, "1.0.0.0", data_dir().AppendASCII("page_action.crx"));
    provider->UpdateOrAddExtension(
        good_crx, "1.0.0.0", data_dir().AppendASCII("good.crx"));
    provider->UpdateOrAddExtension(
        theme_crx, "2.0", data_dir().AppendASCII("theme.crx"));
  
    int count = 3;
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        base::Bind(&WaitForCountNotificationsCallback, &count));
    service()->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service()));
    EXPECT_FALSE(service()->IsExtensionEnabled(page_action));
    EXPECT_FALSE(service()->IsExtensionEnabled(good_crx));
    EXPECT_FALSE(service()->IsExtensionEnabled(theme_crx));
  
    service()->EnableExtension(page_action);
    EXPECT_FALSE(GetError(page_action));
    EXPECT_TRUE(GetError(good_crx));
    EXPECT_TRUE(GetError(theme_crx));
    EXPECT_TRUE(HasExternalInstallErrors(service()));
    EXPECT_FALSE(HasExternalInstallBubble(service()));
  
    service()->EnableExtension(theme_crx);
    EXPECT_FALSE(GetError(page_action));
    EXPECT_FALSE(GetError(theme_crx));
    EXPECT_TRUE(GetError(good_crx));
    EXPECT_TRUE(HasExternalInstallErrors(service()));
    EXPECT_FALSE(HasExternalInstallBubble(service()));
  
    service()->EnableExtension(good_crx);
    EXPECT_FALSE(GetError(page_action));
    EXPECT_FALSE(GetError(good_crx));
    EXPECT_FALSE(GetError(theme_crx));
    EXPECT_FALSE(HasExternalInstallErrors(service()));
    EXPECT_FALSE(HasExternalInstallBubble(service()));
  }
  
  TEST_F(ExtensionServiceTest, MultipleExternalInstallErrors) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
    InitializeEmptyExtensionService();
    service()->set_extensions_enabled(true);
  
    MockExtensionProvider* reg_provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_REGISTRY);
    AddMockExternalProvider(reg_provider);
  
    std::string extension_info[][3] = {
        // {id, path, version}
        {good_crx, "1.0.0.0", "good.crx"},
        {page_action, "1.0.0.0", "page_action.crx"},
        {minimal_platform_app_crx, "0.1", "minimal_platform_app.crx"}};
  
    for (size_t i = 0; i < arraysize(extension_info); ++i) {
      reg_provider->UpdateOrAddExtension(
          extension_info[i][0], extension_info[i][1],
          data_dir().AppendASCII(extension_info[i][2]));
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      service()->CheckForExternalUpdates();
      observer.Wait();
      const size_t expected_error_count = i + 1u;
      EXPECT_EQ(
          expected_error_count,
          service()->external_install_manager()->GetErrorsForTesting().size());
      EXPECT_FALSE(service()->IsExtensionEnabled(extension_info[i][0]));
    }
  
    std::string extension_ids[] = {
      extension_info[0][0], extension_info[1][0], extension_info[2][0]
    };
  
    // Each extension should end up in error.
    ASSERT_TRUE(GetError(extension_ids[0]));
    EXPECT_TRUE(GetError(extension_ids[1]));
    EXPECT_TRUE(GetError(extension_ids[2]));
  
    // Accept the first extension, this will remove the error associated with
    // this extension. Also verify the other errors still exist.
    GetError(extension_ids[0])->OnInstallPromptDone(
        ExtensionInstallPrompt::Result::ACCEPTED);
    EXPECT_FALSE(GetError(extension_ids[0]));
    ASSERT_TRUE(GetError(extension_ids[1]));
    EXPECT_TRUE(GetError(extension_ids[2]));
  
    // Abort the second extension.
    GetError(extension_ids[1])->OnInstallPromptDone(
        ExtensionInstallPrompt::Result::USER_CANCELED);
    EXPECT_FALSE(GetError(extension_ids[0]));
    EXPECT_FALSE(GetError(extension_ids[1]));
    ASSERT_TRUE(GetError(extension_ids[2]));
  
    // Finally, re-enable the third extension, all errors should be removed.
    service()->EnableExtension(extension_ids[2]);
    EXPECT_FALSE(GetError(extension_ids[0]));
    EXPECT_FALSE(GetError(extension_ids[1]));
    EXPECT_FALSE(GetError(extension_ids[2]));
  
    EXPECT_FALSE(HasExternalInstallErrors(service_));
  }
  
  TEST_F(ExtensionServiceTest, MultipleExternalInstallBubbleErrors) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
    // This sets up the ExtensionPrefs used by our ExtensionService to be
    // post-first run.
    ExtensionServiceInitParams params = CreateDefaultInitParams();
    params.is_first_run = false;
    InitializeExtensionService(params);
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
  
    std::vector<BubbleErrorsTestData> data;
    data.push_back(BubbleErrorsTestData(
        updates_from_webstore, "1",
        temp_dir().GetPath().AppendASCII("webstore.crx"), 1u));
    data.push_back(BubbleErrorsTestData(
        updates_from_webstore2, "1",
        temp_dir().GetPath().AppendASCII("webstore2.crx"), 2u));
    data.push_back(BubbleErrorsTestData(good_crx, "1.0.0.0",
                                        data_dir().AppendASCII("good.crx"), 2u));
  
    PackCRX(data_dir().AppendASCII("update_from_webstore"),
            data_dir().AppendASCII("update_from_webstore.pem"), data[0].crx_path);
    PackCRX(data_dir().AppendASCII("update_from_webstore2"),
            data_dir().AppendASCII("update_from_webstore2.pem"),
            data[1].crx_path);
  
    // Install extensions from |data| one by one and expect each of them to result
    // in an error. The first two extensions are from webstore, so they will
    // trigger BUBBLE_ALERT type errors. After each step, we verify that we got
    // the expected number of errors in external_install_manager(). We also verify
    // that only the first BUBBLE_ALERT error is shown.
    for (size_t i = 0; i < data.size(); ++i) {
      content::WindowedNotificationObserver global_error_observer(
          chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
          content::NotificationService::AllSources());
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      provider->UpdateOrAddExtension(data[i].id, data[i].version,
                                     data[i].crx_path);
      service()->CheckForExternalUpdates();
      observer.Wait();
      // Make sure ExternalInstallError::OnDialogReady() fires.
      global_error_observer.Wait();
  
      const size_t expected_error_count = i + 1u;
      std::vector<ExternalInstallError*> errors =
          service_->external_install_manager()->GetErrorsForTesting();
      EXPECT_EQ(expected_error_count, errors.size());
      EXPECT_EQ(data[i].expected_bubble_error_count,
                GetExternalInstallBubbleCount(service()));
      EXPECT_TRUE(service()
                      ->external_install_manager()
                      ->has_currently_visible_install_alert());
      // Make sure that the first error is only being shown.
      EXPECT_EQ(errors[0], service()
                               ->external_install_manager()
                               ->currently_visible_install_alert_for_testing());
      EXPECT_FALSE(service()->IsExtensionEnabled(data[i].id));
    }
  
    // Cancel all the install prompts.
    for (size_t i = 0; i < data.size(); ++i) {
      const std::string& extension_id = data[i].id;
      EXPECT_TRUE(GetError(extension_id));
      GetError(extension_id)
          ->OnInstallPromptDone(ExtensionInstallPrompt::Result::USER_CANCELED);
      EXPECT_FALSE(GetError(extension_id));
    }
    EXPECT_FALSE(service()
                     ->external_install_manager()
                     ->has_currently_visible_install_alert());
    EXPECT_EQ(0u, GetExternalInstallBubbleCount(service()));
    EXPECT_FALSE(HasExternalInstallErrors(service()));
  
    // Add a new webstore install. Verify that this shows an error bubble since
    // there are no error bubbles pending at this point. Also verify that the
    // error bubble is for this newly added extension.
    {
      base::FilePath webstore_crx_three =
          temp_dir().GetPath().AppendASCII("webstore3.crx");
      PackCRX(data_dir().AppendASCII("update_from_webstore3"),
              data_dir().AppendASCII("update_from_webstore3.pem"),
              webstore_crx_three);
  
      content::WindowedNotificationObserver global_error_observer(
          chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
          content::NotificationService::AllSources());
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      provider->UpdateOrAddExtension(
          updates_from_webstore3, "1",
          temp_dir().GetPath().AppendASCII("webstore3.crx"));
      service()->CheckForExternalUpdates();
      observer.Wait();
      // Make sure ExternalInstallError::OnDialogReady() fires.
      global_error_observer.Wait();
  
      std::vector<ExternalInstallError*> errors =
          service_->external_install_manager()->GetErrorsForTesting();
      EXPECT_EQ(1u, errors.size());
      EXPECT_EQ(1u, GetExternalInstallBubbleCount(service()));
      EXPECT_TRUE(service()
                      ->external_install_manager()
                      ->has_currently_visible_install_alert());
      // Verify that the visible alert is for the current error.
      EXPECT_EQ(errors[0], service()
                               ->external_install_manager()
                               ->currently_visible_install_alert_for_testing());
      EXPECT_FALSE(service()->IsExtensionEnabled(updates_from_webstore3));
    }
  }
  
  // Verifies that an error alert of type BUBBLE_ALERT does not replace an
  // existing visible alert that was previously opened by clicking menu item.
  TEST_F(ExtensionServiceTest, BubbleAlertDoesNotHideAnotherAlertFromMenu) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
    // This sets up the ExtensionPrefs used by our ExtensionService to be
    // post-first run.
    ExtensionServiceInitParams params = CreateDefaultInitParams();
    params.is_first_run = false;
    InitializeExtensionService(params);
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
  
    std::vector<BubbleErrorsTestData> data;
    data.push_back(BubbleErrorsTestData(
        updates_from_webstore, "1",
        temp_dir().GetPath().AppendASCII("webstore.crx"), 1u));
    data.push_back(BubbleErrorsTestData(
        updates_from_webstore2, "1",
        temp_dir().GetPath().AppendASCII("webstore2.crx"), 2u));
  
    PackCRX(data_dir().AppendASCII("update_from_webstore"),
            data_dir().AppendASCII("update_from_webstore.pem"), data[0].crx_path);
    PackCRX(data_dir().AppendASCII("update_from_webstore2"),
            data_dir().AppendASCII("update_from_webstore2.pem"),
            data[1].crx_path);
    {
      content::WindowedNotificationObserver global_error_observer(
          chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
          content::NotificationService::AllSources());
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      provider->UpdateOrAddExtension(data[0].id, data[0].version,
                                     data[0].crx_path);
      service()->CheckForExternalUpdates();
      observer.Wait();
      // Make sure ExternalInstallError::OnDialogReady() fires.
      global_error_observer.Wait();
  
      std::vector<ExternalInstallError*> errors =
          service_->external_install_manager()->GetErrorsForTesting();
      EXPECT_EQ(1u, errors.size());
      EXPECT_EQ(1u, GetExternalInstallBubbleCount(service()));
      EXPECT_TRUE(service()
                      ->external_install_manager()
                      ->has_currently_visible_install_alert());
      // Verify that the visible alert is for the current error.
      EXPECT_EQ(errors[0], service()
                               ->external_install_manager()
                               ->currently_visible_install_alert_for_testing());
    }
  
    ExternalInstallError* first_extension_error = GetError(data[0].id);
  
    // Close the bubble alert.
    GlobalError* global_error =
        GlobalErrorServiceFactory::GetForProfile(profile())
            ->GetHighestSeverityGlobalErrorWithAppMenuItem();
    first_extension_error->DidCloseBubbleView();
  
    // Bring the bubble alert error again by clicking its menu item.
    global_error->ExecuteMenuItem(nullptr);
  
    // Install another webstore extension that will trigger an erorr of type
    // BUBBLE_ALERT.
    // Make sure that this bubble alert does not replace the current bubble alert.
    {
      content::WindowedNotificationObserver global_error_observer(
          chrome::NOTIFICATION_GLOBAL_ERRORS_CHANGED,
          content::NotificationService::AllSources());
      content::WindowedNotificationObserver observer(
          extensions::NOTIFICATION_CRX_INSTALLER_DONE,
          content::NotificationService::AllSources());
      provider->UpdateOrAddExtension(data[1].id, data[1].version,
                                     data[1].crx_path);
      service()->CheckForExternalUpdates();
      observer.Wait();
      // Make sure ExternalInstallError::OnDialogReady() fires.
      global_error_observer.Wait();
  
      std::vector<ExternalInstallError*> errors =
          service_->external_install_manager()->GetErrorsForTesting();
      EXPECT_EQ(2u, errors.size());
      EXPECT_EQ(2u, GetExternalInstallBubbleCount(service()));
      EXPECT_TRUE(service()
                      ->external_install_manager()
                      ->has_currently_visible_install_alert());
      // Verify that the old bubble alert was *not* replaced by the new alert.
      EXPECT_EQ(first_extension_error,
                service()
                    ->external_install_manager()
                    ->currently_visible_install_alert_for_testing());
    }
  }
  
  // Test that there is a bubble for external extensions that update
  // from the webstore if the profile is not new.
  TEST_F(ExtensionServiceTest, ExternalInstallUpdatesFromWebstoreOldProfile) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    // This sets up the ExtensionPrefs used by our ExtensionService to be
    // post-first run.
    ExtensionServiceInitParams params = CreateDefaultInitParams();
    params.is_first_run = false;
    InitializeExtensionService(params);
  
    base::FilePath crx_path = temp_dir().GetPath().AppendASCII("webstore.crx");
    PackCRX(data_dir().AppendASCII("update_from_webstore"),
            data_dir().AppendASCII("update_from_webstore.pem"),
            crx_path);
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(updates_from_webstore, "1", crx_path);
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service()));
    ASSERT_TRUE(GetError(updates_from_webstore));
    EXPECT_EQ(ExternalInstallError::BUBBLE_ALERT,
              GetError(updates_from_webstore)->alert_type());
    EXPECT_FALSE(service()->IsExtensionEnabled(updates_from_webstore));
  }
  
  // Test that there is no bubble for external extensions if the profile is new.
  TEST_F(ExtensionServiceTest, ExternalInstallUpdatesFromWebstoreNewProfile) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    InitializeEmptyExtensionService();
  
    base::FilePath crx_path = temp_dir().GetPath().AppendASCII("webstore.crx");
    PackCRX(data_dir().AppendASCII("update_from_webstore"),
            data_dir().AppendASCII("update_from_webstore.pem"),
            crx_path);
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service(), Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(updates_from_webstore, "1", crx_path);
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service()->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service()));
    ASSERT_TRUE(GetError(updates_from_webstore));
    EXPECT_NE(ExternalInstallError::BUBBLE_ALERT,
              GetError(updates_from_webstore)->alert_type());
    EXPECT_FALSE(service()->IsExtensionEnabled(updates_from_webstore));
  }
  
  // Test that clicking to remove the extension on an external install warning
  // uninstalls the extension.
  TEST_F(ExtensionServiceTest, ExternalInstallClickToRemove) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    ExtensionServiceInitParams params = CreateDefaultInitParams();
    params.is_first_run = false;
    InitializeExtensionService(params);
  
    base::FilePath crx_path = temp_dir().GetPath().AppendASCII("webstore.crx");
    PackCRX(data_dir().AppendASCII("update_from_webstore"),
            data_dir().AppendASCII("update_from_webstore.pem"),
            crx_path);
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service_, Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(updates_from_webstore, "1", crx_path);
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service_->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service_));
  
    // We check both enabled and disabled, since these are "eventually exclusive"
    // sets.
    EXPECT_TRUE(registry()->disabled_extensions().GetByID(updates_from_webstore));
    EXPECT_FALSE(registry()->enabled_extensions().GetByID(updates_from_webstore));
  
    // Click the negative response.
    service_->external_install_manager()
        ->GetErrorsForTesting()[0]
        ->OnInstallPromptDone(ExtensionInstallPrompt::Result::USER_CANCELED);
    // The Extension should be uninstalled.
    EXPECT_FALSE(registry()->GetExtensionById(updates_from_webstore,
                                              ExtensionRegistry::EVERYTHING));
    // The error should be removed.
    EXPECT_FALSE(HasExternalInstallErrors(service_));
  }
  
  // Test that clicking to keep the extension on an external install warning
  // re-enables the extension.
  TEST_F(ExtensionServiceTest, ExternalInstallClickToKeep) {
    FeatureSwitch::ScopedOverride prompt(
        FeatureSwitch::prompt_for_external_extensions(), true);
  
    ExtensionServiceInitParams params = CreateDefaultInitParams();
    params.is_first_run = false;
    InitializeExtensionService(params);
  
    base::FilePath crx_path = temp_dir().GetPath().AppendASCII("webstore.crx");
    PackCRX(data_dir().AppendASCII("update_from_webstore"),
            data_dir().AppendASCII("update_from_webstore.pem"),
            crx_path);
  
    MockExtensionProvider* provider =
        new MockExtensionProvider(service_, Manifest::EXTERNAL_PREF);
    AddMockExternalProvider(provider);
    provider->UpdateOrAddExtension(updates_from_webstore, "1", crx_path);
  
    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    service_->CheckForExternalUpdates();
    observer.Wait();
    EXPECT_TRUE(HasExternalInstallErrors(service_));
  
    // We check both enabled and disabled, since these are "eventually exclusive"
    // sets.
    EXPECT_TRUE(registry()->disabled_extensions().GetByID(updates_from_webstore));
    EXPECT_FALSE(registry()->enabled_extensions().GetByID(updates_from_webstore));
  
    // Accept the extension.
    service_->external_install_manager()
        ->GetErrorsForTesting()[0]
        ->OnInstallPromptDone(ExtensionInstallPrompt::Result::ACCEPTED);
  
    // It should be enabled again.
    EXPECT_TRUE(registry()->enabled_extensions().GetByID(updates_from_webstore));
    EXPECT_FALSE(
        registry()->disabled_extensions().GetByID(updates_from_webstore));
  
    // The error should be removed.
    EXPECT_FALSE(HasExternalInstallErrors(service_));
  }
  
  TEST_F(ExtensionServiceTest, InstallBlacklistedExtension) {
    InitializeEmptyExtensionService();
  
    scoped_refptr<Extension> extension = extensions::ExtensionBuilder()
        .SetManifest(extensions::DictionaryBuilder()
            .Set("name", "extension")
            .Set("version", "1.0")
            .Set("manifest_version", 2).Build())
        .Build();
    ASSERT_TRUE(extension.get());
    const std::string& id = extension->id();
  
    std::set<std::string> id_set;
    id_set.insert(id);
  
    extensions::TestExtensionRegistryObserver observer(
        extensions::ExtensionRegistry::Get(profile()));
    // Installation should be allowed but the extension should never have been
    // loaded and it should be blacklisted in prefs.
    service()->OnExtensionInstalled(
        extension.get(),
        syncer::StringOrdinal(),
        (extensions::kInstallFlagIsBlacklistedForMalware |
         extensions::kInstallFlagInstallImmediately));
    base::RunLoop().RunUntilIdle();
  
    // Extension was installed but not loaded.
    observer.WaitForExtensionWillBeInstalled();
    EXPECT_TRUE(service()->GetInstalledExtension(id));
  
    EXPECT_FALSE(registry()->enabled_extensions().Contains(id));
    EXPECT_TRUE(registry()->blacklisted_extensions().Contains(id));
  
    EXPECT_TRUE(ExtensionPrefs::Get(profile())->IsExtensionBlacklisted(id));
    EXPECT_TRUE(
        ExtensionPrefs::Get(profile())->IsBlacklistedExtensionAcknowledged(id));
  }
  
  // Test that we won't allow enabling a blacklisted extension.
  TEST_F(ExtensionServiceTest, CannotEnableBlacklistedExtension) {
    InitializeGoodInstalledExtensionService();
    service()->Init();
    ASSERT_FALSE(registry()->enabled_extensions().is_empty());
  
    // Blacklist the first extension; then try enabling it.
    std::string id = (*(registry()->enabled_extensions().begin()))->id();
    service()->BlacklistExtensionForTest(id);
    EXPECT_FALSE(registry()->enabled_extensions().Contains(id));
    EXPECT_FALSE(registry()->disabled_extensions().Contains(id));
    service()->EnableExtension(id);
    EXPECT_FALSE(registry()->enabled_extensions().Contains(id));
    EXPECT_FALSE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(registry()->blacklisted_extensions().Contains(id));
    EXPECT_TRUE(ExtensionPrefs::Get(profile())->IsExtensionBlacklisted(id));
  
    service()->DisableExtension(id, Extension::DISABLE_USER_ACTION);
    EXPECT_FALSE(registry()->enabled_extensions().Contains(id));
    EXPECT_FALSE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(registry()->blacklisted_extensions().Contains(id));
    EXPECT_TRUE(ExtensionPrefs::Get(profile())->IsExtensionBlacklisted(id));
  }
  
  // Test that calls to disable Shared Modules do not work.
  TEST_F(ExtensionServiceTest, CannotDisableSharedModules) {
    InitializeEmptyExtensionService();
    std::unique_ptr<base::DictionaryValue> manifest =
        extensions::DictionaryBuilder()
            .Set("name", "Shared Module")
            .Set("version", "1.0")
            .Set("manifest_version", 2)
            .Set("export",
                 extensions::DictionaryBuilder()
                     .Set("resources",
                          extensions::ListBuilder().Append("foo.js").Build())
                     .Build())
            .Build();
  
    scoped_refptr<Extension> extension = extensions::ExtensionBuilder()
                                             .SetManifest(std::move(manifest))
                                             .AddFlags(Extension::FROM_WEBSTORE)
                                             .Build();
  
    service()->OnExtensionInstalled(extension.get(), syncer::StringOrdinal(),
                                    extensions::kInstallFlagInstallImmediately);
  
    ASSERT_TRUE(registry()->enabled_extensions().Contains(extension->id()));
    // Try to disable the extension.
    service()->DisableExtension(extension->id(), Extension::DISABLE_USER_ACTION);
    // Shared Module should still be enabled.
    EXPECT_TRUE(registry()->enabled_extensions().Contains(extension->id()));
  }
  
  // Make sure we can uninstall a blacklisted extension
  TEST_F(ExtensionServiceTest, UninstallBlacklistedExtension) {
    InitializeGoodInstalledExtensionService();
    service()->Init();
    ASSERT_FALSE(registry()->enabled_extensions().is_empty());
  
    // Blacklist the first extension; then try uninstalling it.
    std::string id = (*(registry()->enabled_extensions().begin()))->id();
    service()->BlacklistExtensionForTest(id);
    EXPECT_NE(nullptr, registry()->GetInstalledExtension(id));
    base::string16 error;
    EXPECT_TRUE(service()->UninstallExtension(
        id, extensions::UNINSTALL_REASON_USER_INITIATED,
        base::Bind(&base::DoNothing), nullptr));
    EXPECT_EQ(nullptr, registry()->GetInstalledExtension(id));
  }
  
  // Tests a profile being destroyed correctly disables extensions.
  TEST_F(ExtensionServiceTest, DestroyingProfileClearsExtensions) {
    InitializeEmptyExtensionService();
  
    InstallCRX(data_dir().AppendASCII("good.crx"), INSTALL_NEW);
    EXPECT_NE(UnloadedExtensionInfo::REASON_PROFILE_SHUTDOWN, unloaded_reason_);
    EXPECT_EQ(1u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_EQ(0u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  
    service()->Observe(chrome::NOTIFICATION_PROFILE_DESTRUCTION_STARTED,
                       content::Source<Profile>(profile()),
                       content::NotificationService::NoDetails());
    EXPECT_EQ(UnloadedExtensionInfo::REASON_PROFILE_SHUTDOWN, unloaded_reason_);
    EXPECT_EQ(0u, registry()->enabled_extensions().size());
    EXPECT_EQ(0u, registry()->disabled_extensions().size());
    EXPECT_EQ(0u, registry()->terminated_extensions().size());
    EXPECT_EQ(0u, registry()->blacklisted_extensions().size());
  }
  
  // Test that updating a corrupt extension removes the DISABLE_CORRUPTED disable
  // reason.
  TEST_F(ExtensionServiceTest, CorruptExtensionUpdate) {
    InitializeEmptyExtensionService();
  
    base::FilePath v1_path = data_dir().AppendASCII("good.crx");
    const Extension* v1 = InstallCRX(v1_path, INSTALL_NEW);
    std::string id = v1->id();
  
    service()->DisableExtension(id, Extension::DISABLE_CORRUPTED);
  
    ExtensionPrefs* prefs = ExtensionPrefs::Get(profile());
    EXPECT_TRUE(registry()->disabled_extensions().Contains(id));
    EXPECT_TRUE(prefs->HasDisableReason(id, Extension::DISABLE_CORRUPTED));
  
    base::FilePath v2_path = data_dir().AppendASCII("good2.crx");
    UpdateExtension(id, v2_path, ENABLED);
  
    EXPECT_FALSE(registry()->disabled_extensions().Contains(id));
    EXPECT_FALSE(prefs->HasDisableReason(id, Extension::DISABLE_CORRUPTED));
  }
  