text: // Copyright 2015 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 IOS_CHROME_BROWSER_FAVICON_FAVICON_SERVICE_FACTORY_H_
  #define IOS_CHROME_BROWSER_FAVICON_FAVICON_SERVICE_FACTORY_H_
  
  #include <memory>
  
  #include "base/macros.h"
  #include "base/no_destructor.h"
  #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
  
  class ChromeBrowserState;
  enum class ServiceAccessType;
  
  namespace favicon {
  class FaviconService;
  }
  
  namespace ios {
  // Singleton that owns all FaviconServices and associates them with
  // ChromeBrowserState.
  class FaviconServiceFactory : public BrowserStateKeyedServiceFactory {
   public:
    static favicon::FaviconService* GetForBrowserState(
        ChromeBrowserState* browser_state,
        ServiceAccessType access_type);
    static FaviconServiceFactory* GetInstance();
    // Returns the default factory used to build FaviconService. Can be
    // registered with SetTestingFactory to use real instances during testing.
    static TestingFactory GetDefaultFactory();
  
   private:
    friend class base::NoDestructor<FaviconServiceFactory>;
  
    FaviconServiceFactory();
    ~FaviconServiceFactory() override;
  
    // BrowserStateKeyedServiceFactory implementation.
    std::unique_ptr<KeyedService> BuildServiceInstanceFor(
        web::BrowserState* context) const override;
    bool ServiceIsNULLWhileTesting() const override;
  
    DISALLOW_COPY_AND_ASSIGN(FaviconServiceFactory);
  };
  
  }  // namespace ios
  
  #endif  // IOS_CHROME_BROWSER_FAVICON_FAVICON_SERVICE_FACTORY_H_
  