text: // Copyright (c) 2012 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.
  
  #ifndef CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
  #define CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
  
  #include <stdint.h>
  
  #include <memory>
  #include <set>
  #include <string>
  #include <vector>
  
  #include "base/compiler_specific.h"
  #include "base/macros.h"
  #include "base/memory/scoped_vector.h"
  #include "build/build_config.h"
  #include "content/public/utility/content_utility_client.h"
  #include "ipc/ipc_platform_file.h"
  
  namespace base {
  class FilePath;
  struct FileDescriptor;
  }
  
  class UtilityMessageHandler;
  
  class ChromeContentUtilityClient : public content::ContentUtilityClient {
   public:
    ChromeContentUtilityClient();
    ~ChromeContentUtilityClient() override;
  
    void UtilityThreadStarted() override;
    bool OnMessageReceived(const IPC::Message& message) override;
    void ExposeInterfacesToBrowser(
        service_manager::InterfaceRegistry* registry) override;
  
    void AddHandler(std::unique_ptr<UtilityMessageHandler> handler);
  
    static void PreSandboxStartup();
  
   private:
    // IPC message handlers.
    void OnUnpackWebResource(const std::string& resource_data);
  #if defined(OS_CHROMEOS)
    void OnCreateZipFile(const base::FilePath& src_dir,
                         const std::vector<base::FilePath>& src_relative_paths,
                         const base::FileDescriptor& dest_fd);
  #endif  // defined(OS_CHROMEOS)
  
    void OnPatchFileBsdiff(const base::FilePath& input_file,
                           const base::FilePath& patch_file,
                           const base::FilePath& output_file);
    void OnPatchFileCourgette(const base::FilePath& input_file,
                              const base::FilePath& patch_file,
                              const base::FilePath& output_file);
    void OnStartupPing();
  #if defined(FULL_SAFE_BROWSING)
    void OnAnalyzeZipFileForDownloadProtection(
        const IPC::PlatformFileForTransit& zip_file,
        const IPC::PlatformFileForTransit& temp_file);
  #if defined(OS_MACOSX)
    void OnAnalyzeDmgFileForDownloadProtection(
        const IPC::PlatformFileForTransit& dmg_file);
  #endif  // defined(OS_MACOSX)
  #endif  // defined(FULL_SAFE_BROWSING)
  
    typedef ScopedVector<UtilityMessageHandler> Handlers;
    Handlers handlers_;
  
    // Flag to enable whitelisting.
    bool filter_messages_;
    // A list of message_ids to filter.
    std::set<int> message_id_whitelist_;
  
    DISALLOW_COPY_AND_ASSIGN(ChromeContentUtilityClient);
  };
  
  #endif  // CHROME_UTILITY_CHROME_CONTENT_UTILITY_CLIENT_H_
  