Standardize usage of virtual/override/final in chrome/browser/

chrome/browser/services/gcm/gcm_profile_service.h

 // Copyright (c) 2013 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 CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_H_
 #define CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 24 matching lines @@
 
   // Register profile-specific prefs for GCM.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
 #if defined(OS_ANDROID)
   explicit GCMProfileService(Profile* profile);
 #else
   GCMProfileService(Profile* profile,
                     scoped_ptr<GCMClientFactory> gcm_client_factory);
 #endif
-  virtual ~GCMProfileService();
+  ~GCMProfileService() override;
 
   // TODO(jianli): obsolete methods that are going to be removed soon.
   void AddAppHandler(const std::string& app_id, GCMAppHandler* handler);
   void RemoveAppHandler(const std::string& app_id);
   void Register(const std::string& app_id,
                 const std::vector<std::string>& sender_ids,
                 const GCMDriver::RegisterCallback& callback);
 
   // KeyedService:
-  virtual void Shutdown() override;
+  void Shutdown() override;
 
   // Returns the user name if the profile is signed in or an empty string
   // otherwise.
   // TODO(jianli): To be removed when sign-in enforcement is dropped.
   std::string SignedInUserName() const;
 
   // For testing purpose.
   void SetDriverForTesting(GCMDriver* driver);
 
   GCMDriver* driver() const { return driver_.get(); }
@@ skipping 23 matching lines @@
 #if defined(OS_CHROMEOS)
   scoped_ptr<GCMConnectionObserver> chromeos_connection_observer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(GCMProfileService);
 };
 
 }  // namespace gcm
 
 #endif  // CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_H_