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

chrome/browser/ui/webui/voicesearch_ui.cc

 // 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.
 
 #include "chrome/browser/ui/webui/voicesearch_ui.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/path_service.h"
 #include "base/prefs/pref_service.h"
@@ skipping 75 matching lines @@
 //
 // VoiceSearchDomHandler
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 // The handler for Javascript messages for the about:flags page.
 class VoiceSearchDomHandler : public WebUIMessageHandler {
  public:
   explicit VoiceSearchDomHandler(Profile* profile) : profile_(profile) {}
 
-  virtual ~VoiceSearchDomHandler() {}
+  ~VoiceSearchDomHandler() override {}
 
   // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() override {
+  void RegisterMessages() override {
     web_ui()->RegisterMessageCallback(
         "requestVoiceSearchInfo",
         base::Bind(&VoiceSearchDomHandler::HandleRequestVoiceSearchInfo,
                    base::Unretained(this)));
   }
 
  private:
   // Callback for the "requestVoiceSearchInfo" message. No arguments.
   void HandleRequestVoiceSearchInfo(const base::ListValue* args) {
     base::DictionaryValue voiceSearchInfo;
@@ skipping 253 matching lines @@
 VoiceSearchUI::VoiceSearchUI(content::WebUI* web_ui)
     : content::WebUIController(web_ui) {
   Profile* profile = Profile::FromWebUI(web_ui);
   web_ui->AddMessageHandler(new VoiceSearchDomHandler(profile));
 
   // Set up the about:voicesearch source.
   content::WebUIDataSource::Add(profile, CreateVoiceSearchUiHtmlSource());
 }
 
 VoiceSearchUI::~VoiceSearchUI() {}