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

chrome/browser/ui/webui/components_ui.cc

 // Copyright 2013 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/ui/webui/components_ui.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 47 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 //
 // ComponentsDOMHandler
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 // The handler for Javascript messages for the chrome://components/ page.
 class ComponentsDOMHandler : public WebUIMessageHandler {
  public:
   ComponentsDOMHandler();
-  virtual ~ComponentsDOMHandler() {}
+  ~ComponentsDOMHandler() override {}
 
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override;
+  void RegisterMessages() override;
 
   // Callback for the "requestComponentsData" message.
   void HandleRequestComponentsData(const base::ListValue* args);
 
   // Callback for the "checkUpdate" message.
   void HandleCheckUpdate(const base::ListValue* args);
 
  private:
   content::NotificationRegistrar registrar_;
 
@@ skipping 163 matching lines @@
     if (event == ComponentUpdateService::Observer::COMPONENT_UPDATED) {
       ComponentUpdateService* cus = g_browser_process->component_updater();
       component_updater::CrxUpdateItem item;
       if (cus->GetComponentDetails(id, &item))
         parameters.SetString("version", item.component.version.GetString());
     }
     parameters.SetString("id", id);
   }
   web_ui()->CallJavascriptFunction("onComponentEvent", parameters);
 }