Remove #pragma once from content

content/public/browser/devtools_client_host.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_PUBLIC_BROWSER_DEVTOOLS_CLIENT_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_DEVTOOLS_CLIENT_HOST_H_
-#pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 
 namespace IPC {
 class Message;
 }
 
@@ skipping 31 matching lines @@
       WebContents* client_web_contents,
       DevToolsFrontendHostDelegate* delegate);
 
   // Sets up DevToolsClient on the corresponding RenderView.
   static void SetupDevToolsFrontendClient(RenderViewHost* frontend_rvh);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DEVTOOLS_CLIENT_HOST_H_