Upstream //ios/chrome/browser/translate

ios/chrome/browser/translate/translate_service_ios.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_CHROME_BROWSER_TRANSLATE_TRANSLATE_SERVICE_IOS_H_
+#define IOS_CHROME_BROWSER_TRANSLATE_TRANSLATE_SERVICE_IOS_H_
+
+#include "components/web_resource/resource_request_allowed_notifier.h"
+
+class GURL;
+
+// Singleton managing the resources required for Translate.
+class TranslateServiceIOS
+    : public web_resource::ResourceRequestAllowedNotifier::Observer {
+ public:
+  // Must be called before the Translate feature can be used.
+  static void Initialize();
+
+  // Must be called to shut down the Translate feature.
+  static void Shutdown();
+
+  // Returns true if the URL can be translated.
+  static bool IsTranslatableURL(const GURL& url);
+
+ private:
+  TranslateServiceIOS();
+  ~TranslateServiceIOS();
+
+  // ResourceRequestAllowedNotifier::Observer methods.
+  void OnResourceRequestsAllowed() override;
+
+  // Helper class to know if it's allowed to make network resource requests.
+  web_resource::ResourceRequestAllowedNotifier
+      resource_request_allowed_notifier_;
+};
+
+#endif  // IOS_CHROME_BROWSER_TRANSLATE_TRANSLATE_SERVICE_IOS_H_