Add OVERRIDE to chrome/browser/.

chrome/browser/ui/views/extensions/extension_dialog.h

 // Copyright (c) 2011 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_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_
 #pragma once
 
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/notification_observer.h"
@@ skipping 49 matching lines @@
   virtual bool ShouldShowWindowTitle() const OVERRIDE;
   virtual string16 GetWindowTitle() const OVERRIDE;
   virtual void DeleteDelegate() OVERRIDE;
   virtual views::Widget* GetWidget() OVERRIDE;
   virtual const views::Widget* GetWidget() const OVERRIDE;
   virtual views::View* GetContentsView() OVERRIDE;
 
   // content::NotificationObserver overrides.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
-                       const content::NotificationDetails& details);
+                       const content::NotificationDetails& details) OVERRIDE;
 
  private:
   // Use Show() to create instances.
   ExtensionDialog(ExtensionHost* host, ExtensionDialogObserver* observer);
 
   static ExtensionHost* CreateExtensionHost(const GURL& url,
                                             Browser* browser);
 
   void InitWindow(Browser* browser, int width, int height);
 
   // Window that holds the extension host view.
   views::Widget* window_;
 
   // Window Title
   string16 window_title_;
 
   // The contained host for the view.
   scoped_ptr<ExtensionHost> extension_host_;
 
   content::NotificationRegistrar registrar_;
 
   // The observer of this popup.
   ExtensionDialogObserver* observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTENSIONS_EXTENSION_DIALOG_H_