Remove #pragma once from chrome/browser/extensions

chrome/browser/extensions/api/api_resource_event_notifier.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_EVENT_NOTIFIER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_EVENT_NOTIFIER_H_
-#pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/values.h"
 #include "chrome/browser/usb/usb_device.h"
 #include "googleurl/src/gurl.h"
 
 class ExtensionEventRouter;
@@ skipping 70 matching lines @@
   std::string src_extension_id_;
   int src_id_;
   GURL src_url_;
 
   DISALLOW_COPY_AND_ASSIGN(APIResourceEventNotifier);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_API_RESOURCE_EVENT_NOTIFIER_H_