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

chrome/browser/web_resource/promo_resource_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_WEB_RESOURCE_PROMO_RESOURCE_SERVICE_H_
 #define CHROME_BROWSER_WEB_RESOURCE_PROMO_RESOURCE_SERVICE_H_
 
 #include <string>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 17 matching lines @@
 // promotional messages to certain groups of Chrome users.
 class PromoResourceService : public WebResourceService {
  public:
   static void RegisterPrefs(PrefRegistrySimple* registry);
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
   static void MigrateUserPrefs(PrefService* user_prefs);
 
   PromoResourceService();
 
  private:
-  virtual ~PromoResourceService();
+  ~PromoResourceService() override;
 
   // Schedule a notification that a web resource is either going to become
   // available or be no longer valid.
   void ScheduleNotification(const NotificationPromo& notification_promo);
 
   // Schedules the initial notification for when the web resource is going
   // to become available or no longer valid. This performs a few additional
   // checks than ScheduleNotification, namely it schedules updates immediately
   // if the promo service or Chrome locale has changed.
   void ScheduleNotificationOnInit();
 
   // If delay_ms is positive, schedule notification with the delay.
   // If delay_ms is 0, notify immediately by calling WebResourceStateChange().
   // If delay_ms is negative, do nothing.
   void PostNotification(int64 delay_ms);
 
   // Notify listeners that the state of a web resource has changed.
   void PromoResourceStateChange();
 
   // WebResourceService override to process the parsed information.
-  virtual void Unpack(const base::DictionaryValue& parsed_json) override;
+  void Unpack(const base::DictionaryValue& parsed_json) override;
 
   // Allows the creation of tasks to send a notification.
   // This allows the PromoResourceService to notify the New Tab Page immediately
   // when a new web resource should be shown or removed.
   base::WeakPtrFactory<PromoResourceService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PromoResourceService);
 };
 
 #endif  // CHROME_BROWSER_WEB_RESOURCE_PROMO_RESOURCE_SERVICE_H_