Remove #pragma once from content

content/browser/browser_plugin/old/browser_plugin_host_helper.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 CONTENT_BROWSER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_HELPER_H__
 #define CONTENT_BROWSER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_HELPER_H__
-#pragma once
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/render_view_host_observer.h"
 #include "ipc/ipc_channel_handle.h"
 
 namespace gfx {
 class Size;
 }
@@ skipping 25 matching lines @@
 
   BrowserPluginHost* browser_plugin_host_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginHostHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_OLD_BROWSER_PLUGIN_HOST_HELPER_H__