|  | // Copyright 2017 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_TRANSLATE_LANGUAGE_MODEL_FACTORY_H | 
|  | #define IOS_CHROME_BROWSER_TRANSLATE_LANGUAGE_MODEL_FACTORY_H | 
|  |  | 
|  | #include <memory> | 
|  |  | 
|  | #include "base/memory/singleton.h" | 
|  | #include "components/keyed_service/core/keyed_service.h" | 
|  | #include "components/keyed_service/ios/browser_state_keyed_service_factory.h" | 
|  |  | 
|  | namespace ios { | 
|  | class ChromeBrowserState; | 
|  | } | 
|  |  | 
|  | namespace translate { | 
|  | class LanguageModel; | 
|  | } | 
|  |  | 
|  | class LanguageModelFactory : public BrowserStateKeyedServiceFactory { | 
|  | public: | 
|  | static LanguageModelFactory* GetInstance(); | 
|  | static translate::LanguageModel* GetForBrowserState( | 
|  | ios::ChromeBrowserState* browser_state); | 
|  |  | 
|  | private: | 
|  | friend struct base::DefaultSingletonTraits<LanguageModelFactory>; | 
|  |  | 
|  | LanguageModelFactory(); | 
|  | ~LanguageModelFactory() override; | 
|  |  | 
|  | // BrowserStateKeyedServiceFactory implementation. | 
|  | std::unique_ptr<KeyedService> BuildServiceInstanceFor( | 
|  | web::BrowserState* context) const override; | 
|  |  | 
|  | DISALLOW_COPY_AND_ASSIGN(LanguageModelFactory); | 
|  | }; | 
|  |  | 
|  | #endif  // IOS_CHROME_BROWSER_TRANSLATE_LANGUAGE_MODEL_FACTORY_H |