| // Copyright 2015 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #ifndef EXTENSIONS_BROWSER_EVENT_ROUTER_FACTORY_H_ | 
 | #define EXTENSIONS_BROWSER_EVENT_ROUTER_FACTORY_H_ | 
 |  | 
 | #include "base/memory/singleton.h" | 
 | #include "components/keyed_service/content/browser_context_keyed_service_factory.h" | 
 |  | 
 | namespace extensions { | 
 |  | 
 | class EventRouter; | 
 |  | 
 | class EventRouterFactory : public BrowserContextKeyedServiceFactory { | 
 |  public: | 
 |   EventRouterFactory(const EventRouterFactory&) = delete; | 
 |   EventRouterFactory& operator=(const EventRouterFactory&) = delete; | 
 |  | 
 |   static EventRouter* GetForBrowserContext(content::BrowserContext* context); | 
 |   static EventRouterFactory* GetInstance(); | 
 |  | 
 |  private: | 
 |   friend struct base::DefaultSingletonTraits<EventRouterFactory>; | 
 |  | 
 |   EventRouterFactory(); | 
 |   ~EventRouterFactory() override; | 
 |  | 
 |   // BrowserContextKeyedServiceFactory implementation | 
 |   std::unique_ptr<KeyedService> BuildServiceInstanceForBrowserContext( | 
 |       content::BrowserContext* context) const override; | 
 |   content::BrowserContext* GetBrowserContextToUse( | 
 |       content::BrowserContext* context) const override; | 
 |   bool ServiceIsNULLWhileTesting() const override; | 
 | }; | 
 |  | 
 | }  // namespace extensions | 
 |  | 
 | #endif  // EXTENSIONS_BROWSER_EVENT_ROUTER_FACTORY_H_ |