Upstream ios/web_view source code.

ios/web_view/internal/translate/criwv_translate_accept_languages_factory.h

+// Copyright 2014 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_WEB_VIEW_INTERNAL_TRANSLATE_CRIWV_TRANSLATE_ACCEPT_LANGUAGES_FACTORY_H_
+#define IOS_WEB_VIEW_INTERNAL_TRANSLATE_CRIWV_TRANSLATE_ACCEPT_LANGUAGES_FACTORY_H_
+
+#include <memory>
+#include "base/macros.h"
+#include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
+
+namespace base {
+template <typename T>
+struct DefaultSingletonTraits;
+}  // namespace base
+
+namespace translate {
+class TranslateAcceptLanguages;
+}
+
+namespace ios_web_view {
+
+class CRIWVBrowserState;
+
+// TranslateAcceptLanguagesFactory is a way to associate a
+// TranslateAcceptLanguages instance to a BrowserState.
+class CRIWVTranslateAcceptLanguagesFactory
+    : public BrowserStateKeyedServiceFactory {
+ public:
+  static translate::TranslateAcceptLanguages* GetForBrowserState(
+      CRIWVBrowserState* browser_state);
+  static CRIWVTranslateAcceptLanguagesFactory* GetInstance();
+
+ private:
+  friend struct base::DefaultSingletonTraits<
+      CRIWVTranslateAcceptLanguagesFactory>;
+
+  CRIWVTranslateAcceptLanguagesFactory();
+  ~CRIWVTranslateAcceptLanguagesFactory() override;
+
+  // BrowserStateKeyedServiceFactory implementation.
+  std::unique_ptr<KeyedService> BuildServiceInstanceFor(
+      web::BrowserState* context) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(CRIWVTranslateAcceptLanguagesFactory);
+};
+
+}  // namespace ios_web_view
+
+#endif  // IOS_WEB_VIEW_INTERNAL_TRANSLATE_CRIWV_TRANSLATE_ACCEPT_LANGUAGES_FACTORY_H_