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

chrome/browser/enhanced_bookmarks/chrome_bookmark_server_cluster_service.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_ENHANCED_BOOKMARKS_CHROME_BOOKMARK_SERVER_CLUSTER_SERVICE_H_
 #define CHROME_BROWSER_ENHANCED_BOOKMARKS_CHROME_BOOKMARK_SERVER_CLUSTER_SERVICE_H_
 
 #include "chrome/browser/sync/profile_sync_service_observer.h"
 #include "components/enhanced_bookmarks/bookmark_server_cluster_service.h"
 
 class ProfileSyncService;
 
 namespace enhanced_bookmarks {
 
 // A cluster service that invalidates its data when a sync operation finishes.
 class ChromeBookmarkServerClusterService : public BookmarkServerClusterService,
                                            public ProfileSyncServiceObserver {
  public:
   ChromeBookmarkServerClusterService(
       const std::string& application_language_code,
       scoped_refptr<net::URLRequestContextGetter> request_context_getter,
       ProfileOAuth2TokenService* token_service,
       SigninManagerBase* signin_manager,
       EnhancedBookmarkModel* enhanced_bookmark_model,
       PrefService* pref_service,
       ProfileSyncService* sync_service);
-  virtual ~ChromeBookmarkServerClusterService();
+  ~ChromeBookmarkServerClusterService() override;
 
   // BookmarkServerClusterService
-  virtual void AddObserver(BookmarkServerServiceObserver* observer) override;
+  void AddObserver(BookmarkServerServiceObserver* observer) override;
 
   // ProfileSyncServiceObserver implementation.
-  virtual void OnStateChanged() override;
-  virtual void OnSyncCycleCompleted() override;
+  void OnStateChanged() override;
+  void OnSyncCycleCompleted() override;
 
  private:
   // This class observes the sync service for changes.
   ProfileSyncService* sync_service_;
   bool sync_refresh_skipped_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBookmarkServerClusterService);
 };
 
 }  // namespace enhanced_bookmarks
 
 #endif  // CHROME_BROWSER_ENHANCED_BOOKMARKS_CHROME_BOOKMARK_SERVER_CLUSTER_SERVICE_H_