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

chrome/browser/extensions/api/synced_notifications_private/synced_notifications_private_api.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 CHROME_BROWSER_EXTENSIONS_API_SYNCED_NOTIFICATIONS_PRIVATE_SYNCED_NOTIFICATIONS_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYNCED_NOTIFICATIONS_PRIVATE_SYNCED_NOTIFICATIONS_PRIVATE_API_H_
 
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/common/extensions/api/synced_notifications_private.h"
 
 namespace extensions {
 namespace api {
 
 class SyncedNotificationsPrivateGetInitialDataFunction
     : public UIThreadExtensionFunction {
  public:
   SyncedNotificationsPrivateGetInitialDataFunction();
   DECLARE_EXTENSION_FUNCTION("syncedNotificationsPrivate.getInitialData",
                              SYNCEDNOTIFICATIONSPRIVATE_GETINITIALDATA);
 
  protected:
-  virtual ~SyncedNotificationsPrivateGetInitialDataFunction();
-  virtual ResponseAction Run() override;
+  ~SyncedNotificationsPrivateGetInitialDataFunction() override;
+  ResponseAction Run() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncedNotificationsPrivateGetInitialDataFunction);
 };
 
 class SyncedNotificationsPrivateUpdateNotificationFunction
     : public UIThreadExtensionFunction {
  public:
   SyncedNotificationsPrivateUpdateNotificationFunction();
   DECLARE_EXTENSION_FUNCTION("syncedNotificationsPrivate.updateNotification",
                              SYNCEDNOTIFICATIONSPRIVATE_UPDATENOTIFICATION);
 
  protected:
-  virtual ~SyncedNotificationsPrivateUpdateNotificationFunction();
-  virtual ResponseAction Run() override;
+  ~SyncedNotificationsPrivateUpdateNotificationFunction() override;
+  ResponseAction Run() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(
       SyncedNotificationsPrivateUpdateNotificationFunction);
 };
 
 class SyncedNotificationsPrivateSetRenderContextFunction
     : public UIThreadExtensionFunction {
  public:
   SyncedNotificationsPrivateSetRenderContextFunction();
   DECLARE_EXTENSION_FUNCTION("syncedNotificationsPrivate.setRenderContext",
                              SYNCEDNOTIFICATIONSPRIVATE_SETRENDERCONTEXT);
 
  protected:
-  virtual ~SyncedNotificationsPrivateSetRenderContextFunction();
-  virtual ResponseAction Run() override;
+  ~SyncedNotificationsPrivateSetRenderContextFunction() override;
+  ResponseAction Run() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncedNotificationsPrivateSetRenderContextFunction);
 };
 
 }  // namespace api
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYNCED_NOTIFICATIONS_PRIVATE_SYNCED_NOTIFICATIONS_PRIVATE_API_H_