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

chrome/browser/ui/network_profile_bubble.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/network_profile_bubble.h"
 
 #include <windows.h>
 
 #include <wtsapi32.h>
 // Make sure we link the wtsapi lib file in.
@@ skipping 23 matching lines @@
 const int kSilenceDurationDays = 100;
 
 // The number of warnings to be shown on consequtive starts of Chrome before the
 // silent period starts.
 const int kMaxWarnings = 2;
 
 // Implementation of chrome::BrowserListObserver used to wait for a browser
 // window.
 class BrowserListObserver : public chrome::BrowserListObserver {
  private:
-  virtual ~BrowserListObserver();
+  ~BrowserListObserver() override;
 
   // Overridden from chrome::BrowserListObserver:
-  virtual void OnBrowserAdded(Browser* browser) override;
-  virtual void OnBrowserRemoved(Browser* browser) override;
-  virtual void OnBrowserSetLastActive(Browser* browser) override;
+  void OnBrowserAdded(Browser* browser) override;
+  void OnBrowserRemoved(Browser* browser) override;
+  void OnBrowserSetLastActive(Browser* browser) override;
 };
 
 BrowserListObserver::~BrowserListObserver() {
 }
 
 void BrowserListObserver::OnBrowserAdded(Browser* browser) {
 }
 
 void BrowserListObserver::OnBrowserRemoved(Browser* browser) {
 }
@@ skipping 119 matching lines @@
 // static
 void NetworkProfileBubble::NotifyNetworkProfileDetected() {
   Browser* browser = chrome::FindLastActiveWithHostDesktopType(
       chrome::GetActiveDesktop());
 
   if (browser)
     ShowNotification(browser);
   else
     BrowserList::AddObserver(new BrowserListObserver());
 }