Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/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_EXTENSION_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WINDOW_CONTROLLER_H_
-#pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
 class BaseWindow;
 class Browser;  // TODO(stevenjb) eliminate this dependency.
 class GURL;
 class Profile;
@@ skipping 60 matching lines @@
       const extensions::Extension* extension) const = 0;
 
  private:
   BaseWindow* window_;
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionWindowController);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WINDOW_CONTROLLER_H_