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

chrome/browser/extensions/browser_extension_window_controller.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_EXTENSIONS_BROWSER_EXTENSION_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_BROWSER_EXTENSION_WINDOW_CONTROLLER_H_
 
 #include "chrome/browser/extensions/window_controller.h"
 
 class Browser;
 
 namespace extensions {
 class Extension;
 }
 
 class BrowserExtensionWindowController : public extensions::WindowController {
  public:
   explicit BrowserExtensionWindowController(Browser* browser);
-  virtual ~BrowserExtensionWindowController();
+  ~BrowserExtensionWindowController() override;
 
   // extensions::WindowController implementation.
-  virtual int GetWindowId() const override;
-  virtual std::string GetWindowTypeText() const override;
-  virtual base::DictionaryValue* CreateWindowValue() const override;
-  virtual base::DictionaryValue* CreateWindowValueWithTabs(
+  int GetWindowId() const override;
+  std::string GetWindowTypeText() const override;
+  base::DictionaryValue* CreateWindowValue() const override;
+  base::DictionaryValue* CreateWindowValueWithTabs(
       const extensions::Extension* extension) const override;
-  virtual base::DictionaryValue* CreateTabValue(
-      const extensions::Extension* extension, int tab_index) const override;
-  virtual bool CanClose(Reason* reason) const override;
-  virtual void SetFullscreenMode(bool is_fullscreen,
-                                 const GURL& extension_url) const override;
-  virtual Browser* GetBrowser() const override;
-  virtual bool IsVisibleToExtension(
+  base::DictionaryValue* CreateTabValue(const extensions::Extension* extension,
+                                        int tab_index) const override;
+  bool CanClose(Reason* reason) const override;
+  void SetFullscreenMode(bool is_fullscreen,
+                         const GURL& extension_url) const override;
+  Browser* GetBrowser() const override;
+  bool IsVisibleToExtension(
       const extensions::Extension* extension) const override;
 
  private:
   Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserExtensionWindowController);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BROWSER_EXTENSION_WINDOW_CONTROLLER_H_