Standardize usage of virtual/override/final in components/

components/gcm_driver/fake_gcm_app_handler.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 COMPONENTS_GCM_DRIVER_FAKE_GCM_APP_HANDLER_H_
 #define COMPONENTS_GCM_DRIVER_FAKE_GCM_APP_HANDLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/gcm_driver/gcm_app_handler.h"
 
 namespace base {
 class RunLoop;
 }
 
 namespace gcm {
 
 class FakeGCMAppHandler : public GCMAppHandler {
  public:
   enum Event {
     NO_EVENT,
     MESSAGE_EVENT,
     MESSAGES_DELETED_EVENT,
     SEND_ERROR_EVENT
   };
 
   FakeGCMAppHandler();
-  virtual ~FakeGCMAppHandler();
+  ~FakeGCMAppHandler() override;
 
   const Event& received_event() const { return received_event_; }
   const std::string& app_id() const { return app_id_; }
   const std::string& acked_message_id() const { return acked_message_id_; }
   const GCMClient::IncomingMessage& message() const { return message_; }
   const GCMClient::SendErrorDetails& send_error_details() const {
     return send_error_details_;
   }
 
   void WaitForNotification();
 
   // GCMAppHandler implementation.
-  virtual void ShutdownHandler() override;
-  virtual void OnMessage(const std::string& app_id,
-                         const GCMClient::IncomingMessage& message) override;
-  virtual void OnMessagesDeleted(const std::string& app_id) override;
-  virtual void OnSendError(
+  void ShutdownHandler() override;
+  void OnMessage(const std::string& app_id,
+                 const GCMClient::IncomingMessage& message) override;
+  void OnMessagesDeleted(const std::string& app_id) override;
+  void OnSendError(
       const std::string& app_id,
       const GCMClient::SendErrorDetails& send_error_details) override;
-  virtual void OnSendAcknowledged(const std::string& app_id,
-                                  const std::string& message_id) override;
+  void OnSendAcknowledged(const std::string& app_id,
+                          const std::string& message_id) override;
 
  private:
   void ClearResults();
 
   scoped_ptr<base::RunLoop> run_loop_;
 
   Event received_event_;
   std::string app_id_;
   std::string acked_message_id_;
   GCMClient::IncomingMessage message_;
   GCMClient::SendErrorDetails send_error_details_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeGCMAppHandler);
 };
 
 }  // namespace gcm
 
 #endif  // COMPONENTS_GCM_DRIVER_FAKE_GCM_APP_HANDLER_H_