Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/api/api_resource_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_API_API_RESOURCE_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_CONTROLLER_H_
-#pragma once
 
 #include <string>
 #include <map>
 
 #include "base/memory/linked_ptr.h"
 #include "chrome/browser/extensions/api/api_resource.h"
 
 namespace extensions {
 
 class SerialConnection;
@@ skipping 51 matching lines @@
   APIResourceMap* socket_resource_map_;
   APIResourceMap* serial_connection_resource_map_;
   APIResourceMap* usb_device_resource_map_;
 
   DISALLOW_COPY_AND_ASSIGN(APIResourceController);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_CONTROLLER_H_