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

chrome/browser/notifications/desktop_notification_service.h

 // Copyright (c) 2012 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_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_
 #define CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 62 matching lines @@
     // Add a desktop notification.
   static std::string AddIconNotification(const GURL& origin_url,
                                          const base::string16& title,
                                          const base::string16& message,
                                          const gfx::Image& icon,
                                          const base::string16& replace_id,
                                          NotificationDelegate* delegate,
                                          Profile* profile);
 
   explicit DesktopNotificationService(Profile* profile);
-  virtual ~DesktopNotificationService();
+  ~DesktopNotificationService() override;
 
   // Requests Web Notification permission for |requesting_frame|. The |callback|
   // will be invoked after the user has made a decision.
   void RequestNotificationPermission(
       content::WebContents* web_contents,
       const PermissionRequestID& request_id,
       const GURL& requesting_origin,
       bool user_gesture,
       const NotificationPermissionCallback& callback);
 
@@ skipping 32 matching lines @@
   void OnNotificationPermissionRequested(
       const base::Callback<void(blink::WebNotificationPermission)>& callback,
       bool allowed);
 
   void FirePermissionLevelChangedEvent(
       const message_center::NotifierId& notifier_id,
       bool enabled);
 
 #if defined(ENABLE_EXTENSIONS)
   // extensions::ExtensionRegistryObserver:
-  virtual void OnExtensionUninstalled(
-      content::BrowserContext* browser_context,
-      const extensions::Extension* extension,
-      extensions::UninstallReason reason) override;
+  void OnExtensionUninstalled(content::BrowserContext* browser_context,
+                              const extensions::Extension* extension,
+                              extensions::UninstallReason reason) override;
 #endif
 
   // PermissionContextBase:
-  virtual void UpdateContentSetting(const GURL& requesting_origin,
-                                    const GURL& embedder_origin,
-                                    bool allowed) override;
+  void UpdateContentSetting(const GURL& requesting_origin,
+                            const GURL& embedder_origin,
+                            bool allowed) override;
 
   // The profile which owns this object.
   Profile* profile_;
 
   // Prefs listener for disabled_extension_id.
   StringListPrefMember disabled_extension_id_pref_;
 
   // Prefs listener for disabled_system_component_id.
   StringListPrefMember disabled_system_component_id_pref_;
 
   // On-memory data for the availability of extensions.
   std::set<std::string> disabled_extension_ids_;
 
   // On-memory data for the availability of system_component.
   std::set<std::string> disabled_system_component_ids_;
 
 #if defined(ENABLE_EXTENSIONS)
   // An observer to listen when extension is uninstalled.
   ScopedObserver<extensions::ExtensionRegistry,
                  extensions::ExtensionRegistryObserver>
       extension_registry_observer_;
 #endif
 
   base::WeakPtrFactory<DesktopNotificationService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNotificationService);
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_