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

chrome/browser/browsing_data/browsing_data_flash_lso_helper.cc

 // 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.
 
 #include "chrome/browser/browsing_data/browsing_data_flash_lso_helper.h"
 
 #include <limits>
 #include <map>
 
 #include "base/callback.h"
 #include "base/logging.h"
 #include "chrome/browser/pepper_flash_settings_manager.h"
 
 namespace {
 
 class BrowsingDataFlashLSOHelperImpl
     : public BrowsingDataFlashLSOHelper,
       public PepperFlashSettingsManager::Client {
  public:
   explicit BrowsingDataFlashLSOHelperImpl(
       content::BrowserContext* browser_context);
 
   // BrowsingDataFlashLSOHelper implementation:
-  virtual void StartFetching(
-      const GetSitesWithFlashDataCallback& callback) override;
-  virtual void DeleteFlashLSOsForSite(const std::string& site) override;
+  void StartFetching(const GetSitesWithFlashDataCallback& callback) override;
+  void DeleteFlashLSOsForSite(const std::string& site) override;
 
   // PepperFlashSettingsManager::Client overrides:
-  virtual void OnGetSitesWithDataCompleted(
+  void OnGetSitesWithDataCompleted(
       uint32 request_id,
       const std::vector<std::string>& sites) override;
-  virtual void OnClearSiteDataCompleted(
-      uint32 request_id,
-      bool success) override;
+  void OnClearSiteDataCompleted(uint32 request_id, bool success) override;
 
  private:
-  virtual ~BrowsingDataFlashLSOHelperImpl();
+  ~BrowsingDataFlashLSOHelperImpl() override;
 
   // Asynchronously fetches and deletes data and calls us back.
   PepperFlashSettingsManager settings_manager_;
 
   // Identifies the request to fetch site data.
   uint32 get_sites_with_data_request_id_;
 
   // Contains the pending requests to clear site data. The key is the request
   // ID, the value the site for which to clear data.
   std::map<uint32, std::string> clear_site_data_ids_;
@@ skipping 46 matching lines @@
   clear_site_data_ids_.erase(entry);
 }
 
 }  // namespace
 
 // static
 BrowsingDataFlashLSOHelper* BrowsingDataFlashLSOHelper::Create(
     content::BrowserContext* browser_context) {
   return new BrowsingDataFlashLSOHelperImpl(browser_context);
 }