Remove #pragma once from content

content/common/gpu/gpu_memory_manager.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_COMMON_GPU_GPU_MEMORY_MANAGER_H_
 #define CONTENT_COMMON_GPU_GPU_MEMORY_MANAGER_H_
-#pragma once
 
 #if defined(ENABLE_GPU)
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/cancelable_callback.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/content_export.h"
 
@@ skipping 56 matching lines @@
   bool manage_immediate_scheduled_;
 
   size_t max_surfaces_with_frontbuffer_soft_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryManager);
 };
 
 #endif
 
 #endif // CONTENT_COMMON_GPU_GPU_MEMORY_MANAGER_H_