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

chrome/browser/ui/webui/chrome_web_contents_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_CHROME_WEB_CONTENTS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROME_WEB_CONTENTS_HANDLER_H_
 
 #include "base/compiler_specific.h"
 #include "ui/web_dialogs/web_dialog_web_contents_delegate.h"
 
 class ChromeWebContentsHandler
     : public ui::WebDialogWebContentsDelegate::WebContentsHandler {
  public:
   ChromeWebContentsHandler();
-  virtual ~ChromeWebContentsHandler();
+  ~ChromeWebContentsHandler() override;
 
   // Overridden from WebDialogWebContentsDelegate::WebContentsHandler:
-  virtual content::WebContents* OpenURLFromTab(
+  content::WebContents* OpenURLFromTab(
       content::BrowserContext* context,
       content::WebContents* source,
       const content::OpenURLParams& params) override;
-  virtual void AddNewContents(content::BrowserContext* context,
-                              content::WebContents* source,
-                              content::WebContents* new_contents,
-                              WindowOpenDisposition disposition,
-                              const gfx::Rect& initial_pos,
-                              bool user_gesture) override;
+  void AddNewContents(content::BrowserContext* context,
+                      content::WebContents* source,
+                      content::WebContents* new_contents,
+                      WindowOpenDisposition disposition,
+                      const gfx::Rect& initial_pos,
+                      bool user_gesture) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ChromeWebContentsHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROME_WEB_CONTENTS_HANDLER_H_