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.
  
  #ifndef CHROME_BROWSER_INVALIDATION_INVALIDATION_SERVICE_FACTORY_H_
  #define CHROME_BROWSER_INVALIDATION_INVALIDATION_SERVICE_FACTORY_H_
  
  #include "base/basictypes.h"
  #include "base/memory/singleton.h"
  #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
  
  namespace user_prefs {
  class PrefRegistrySyncable;
  }
  
  namespace syncer {
  class Invalidator;
  }
  
  class Profile;
  
  namespace invalidation {
  
  class FakeInvalidationService;
  class InvalidationService;
  class P2PInvalidationService;
  
  // A BrowserContextKeyedServiceFactory to construct InvalidationServices.  The
  // implementation of the 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 InvalidationServiceFactory : public BrowserContextKeyedServiceFactory {
   public:
    static InvalidationService* GetForProfile(Profile* profile);
  
    static InvalidationServiceFactory* GetInstance();
  
    // Switches service creation to go through |testing_factory| for all browser
    // contexts.
    void RegisterTestingFactory(TestingFactoryFunction testing_factory);
  
   private:
    friend struct DefaultSingletonTraits<InvalidationServiceFactory>;
  
    InvalidationServiceFactory();
    virtual ~InvalidationServiceFactory();
  
    // BrowserContextKeyedServiceFactory:
    virtual KeyedService* BuildServiceInstanceFor(
        content::BrowserContext* context) const OVERRIDE;
    virtual void RegisterProfilePrefs(
        user_prefs::PrefRegistrySyncable* registry) OVERRIDE;
  
    TestingFactoryFunction testing_factory_;
  
    DISALLOW_COPY_AND_ASSIGN(InvalidationServiceFactory);
  };
  
  }  // namespace invalidation
  
  #endif  // CHROME_BROWSER_INVALIDATION_INVALIDATION_SERVICE_FACTORY_H_
  