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

chrome/browser/ui/browser.cc

 // Copyright 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.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 294 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // Browser, InterstitialObserver:
 
 class Browser::InterstitialObserver : public content::WebContentsObserver {
  public:
   InterstitialObserver(Browser* browser, content::WebContents* web_contents)
       : WebContentsObserver(web_contents),
         browser_(browser) {
   }
 
-  virtual void DidAttachInterstitialPage() override {
+  void DidAttachInterstitialPage() override {
     browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
   }
 
-  virtual void DidDetachInterstitialPage() override {
+  void DidDetachInterstitialPage() override {
     browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
   }
 
  private:
   Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
 };
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 2165 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         ui::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }