Update {virtual,override} to follow C++11 style in chrome.

chrome/browser/ui/browser_command_controller.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/ui/browser_command_controller.h"
 
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 112 matching lines @@
 class SwitchToMetroUIHandler
     : public ShellIntegration::DefaultWebClientObserver {
  public:
   SwitchToMetroUIHandler()
       : default_browser_worker_(
             new ShellIntegration::DefaultBrowserWorker(this)),
         first_check_(true) {
     default_browser_worker_->StartCheckIsDefault();
   }
 
-  virtual ~SwitchToMetroUIHandler() {
+  ~SwitchToMetroUIHandler() override {
     default_browser_worker_->ObserverDestroyed();
   }
 
  private:
-  virtual void SetDefaultWebClientUIState(
+  void SetDefaultWebClientUIState(
       ShellIntegration::DefaultWebClientUIState state) override {
     switch (state) {
       case ShellIntegration::STATE_PROCESSING:
         return;
       case ShellIntegration::STATE_UNKNOWN :
         break;
       case ShellIntegration::STATE_IS_DEFAULT:
         chrome::AttemptRestartToMetroMode();
         break;
       case ShellIntegration::STATE_NOT_DEFAULT:
         if (first_check_) {
           default_browser_worker_->StartSetAsDefault();
           return;
         }
         break;
       default:
         NOTREACHED();
     }
     delete this;
   }
 
-  virtual void OnSetAsDefaultConcluded(bool success)  override {
+  void OnSetAsDefaultConcluded(bool success) override {
     if (!success) {
       delete this;
       return;
     }
     first_check_ = false;
     default_browser_worker_->StartCheckIsDefault();
   }
 
-  virtual bool IsInteractiveSetDefaultPermitted() override {
+  bool IsInteractiveSetDefaultPermitted() override {
     return true;
   }
 
   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
   bool first_check_;
 
   DISALLOW_COPY_AND_ASSIGN(SwitchToMetroUIHandler);
 };
 #endif  // defined(OS_WIN)
 
@@ skipping 1177 matching lines @@
 
 BrowserWindow* BrowserCommandController::window() {
   return browser_->window();
 }
 
 Profile* BrowserCommandController::profile() {
   return browser_->profile();
 }
 
 }  // namespace chrome