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

chrome/browser/ui/webui/ntp/new_tab_page_handler.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_UI_WEBUI_NTP_NEW_TAB_PAGE_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_PAGE_HANDLER_H_
 
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 14 matching lines @@
   NewTabPageHandler();
 
   // Register NTP per-profile preferences.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // Registers values (strings etc.) for the page.
   static void GetLocalizedValues(Profile* profile,
       base::DictionaryValue* values);
 
  private:
-  virtual ~NewTabPageHandler();
+  ~NewTabPageHandler() override;
 
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override;
+  void RegisterMessages() override;
 
   // Callback for "notificationPromoClosed". No arguments.
   void HandleNotificationPromoClosed(const base::ListValue* args);
 
   // Callback for "notificationPromoViewed". No arguments.
   void HandleNotificationPromoViewed(const base::ListValue* args);
 
   // Callback for "notificationPromoLinkClicked". No arguments.
   void HandleNotificationPromoLinkClicked(const base::ListValue* args);
 
@@ skipping 31 matching lines @@
   static const int kHistogramEnumerationMax =
       (LAST_PAGE_ID >> kPageIdOffset) + 1;
 
   // Helper to send out promo resource change notification.
   void Notify(chrome::NotificationType notification_type);
 
   DISALLOW_COPY_AND_ASSIGN(NewTabPageHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_NEW_TAB_PAGE_HANDLER_H_