text: // Copyright 2018 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_BROWSER_INVALIDATION_PROFILE_INVALIDATION_PROVIDER_FACTORY_H_
  #define CHROME_BROWSER_INVALIDATION_PROFILE_INVALIDATION_PROVIDER_FACTORY_H_
  
  #include "base/memory/singleton.h"
  #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
  
  class Profile;
  
  namespace policy {
  class AffiliatedInvalidationServiceProviderImplTest;
  }
  
  namespace invalidation {
  
  class ProfileInvalidationProvider;
  
  // A BrowserContextKeyedServiceFactory to construct InvalidationServices wrapped
  // in ProfileInvalidationProviders. The implementation of InvalidationService
  // may be completely different on different platforms; this class should help to
  // hide this complexity. It also exposes some factory methods that are useful
  // for setting up tests that rely on invalidations.
  class ProfileInvalidationProviderFactory
      : public BrowserContextKeyedServiceFactory {
   public:
    // Returns the ProfileInvalidationProvider for the given |profile|, lazily
    // creating one first if required. If |profile| does not support invalidation
    // (Chrome OS login profile, Chrome OS guest), returns NULL instead.
    static ProfileInvalidationProvider* GetForProfile(Profile* profile);
  
    static ProfileInvalidationProviderFactory* GetInstance();
  
    ProfileInvalidationProviderFactory(
        const ProfileInvalidationProviderFactory&) = delete;
    ProfileInvalidationProviderFactory& operator=(
        const ProfileInvalidationProviderFactory&) = delete;
  
    // Switches service creation to go through |testing_factory| for all browser
    // contexts.
    void RegisterTestingFactory(TestingFactory testing_factory);
  
   private:
    friend class ProfileInvalidationProviderFactoryTestBase;
    friend class policy::AffiliatedInvalidationServiceProviderImplTest;
    friend struct base::DefaultSingletonTraits<
        ProfileInvalidationProviderFactory>;
  
    ProfileInvalidationProviderFactory();
    ~ProfileInvalidationProviderFactory() override;
  
    // BrowserContextKeyedServiceFactory:
    KeyedService* BuildServiceInstanceFor(
        content::BrowserContext* context) const override;
    void RegisterProfilePrefs(
        user_prefs::PrefRegistrySyncable* registry) override;
  
    TestingFactory testing_factory_;
  };
  
  }  // namespace invalidation
  
  #endif  // CHROME_BROWSER_INVALIDATION_PROFILE_INVALIDATION_PROVIDER_FACTORY_H_
  