Remove #pragma once from content

content/browser/gpu/gpu_process_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_BROWSER_GPU_GPU_PROCESS_HOST_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
-#pragma once
 
 #include <map>
 #include <queue>
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/linked_ptr.h"
 #include "base/process.h"
 #include "base/threading/non_thread_safe.h"
 #include "base/time.h"
@@ skipping 175 matching lines @@
   static bool gpu_enabled_;
 
   static bool hardware_gpu_enabled_;
 
   scoped_ptr<BrowserChildProcessHostImpl> process_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessHost);
 };
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_