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

chrome/browser/ui/webui/ntp/new_tab_page_sync_handler.h

 // Copyright (c) 2011 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_UI_WEBUI_NTP_NEW_TAB_PAGE_SYNC_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_PAGE_SYNC_HANDLER_H_
 
 #include <string>
 
 #include "base/prefs/pref_change_registrar.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/sync_ui_util.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 namespace base {
 class ListValue;
 }
 
 // Sends sync-state changes to the New Tab Page for UI updating and forwards
 // link clicks on the page to the sync service.
 class NewTabPageSyncHandler : public content::WebUIMessageHandler,
                               public ProfileSyncServiceObserver {
  public:
   NewTabPageSyncHandler();
-  virtual ~NewTabPageSyncHandler();
+  ~NewTabPageSyncHandler() override;
 
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override;
+  void RegisterMessages() override;
 
   // Callback for "GetSyncMessage".
   void HandleGetSyncMessage(const base::ListValue* args);
   // Callback for "SyncLinkClicked".
   void HandleSyncLinkClicked(const base::ListValue* args);
 
   // ProfileSyncServiceObserver
-  virtual void OnStateChanged() override;
+  void OnStateChanged() override;
 
   void OnSigninAllowedPrefChange();
 
  private:
   friend class MockNewTabPageSyncHandler;
   FRIEND_TEST_ALL_PREFIXES(NewTabPageSyncHandlerBrowserTest,
                            ChangeSigninAllowedToFalse);
 
   enum MessageType {
     HIDE,
@@ skipping 22 matching lines @@
   PrefChangeRegistrar profile_pref_registrar_;
 
   // Used to make sure we don't register ourselves twice if the user refreshes
   // the new tab page.
   bool waiting_for_initial_page_load_;
 
   DISALLOW_COPY_AND_ASSIGN(NewTabPageSyncHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_PAGE_SYNC_HANDLER_H_