Remove #pragma once from content

content/browser/renderer_host/image_transport_factory.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_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_H_
 #define CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_H_
-#pragma once
 
 #include "base/memory/ref_counted.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace content {
 class GLHelper;
 }
 
 namespace gfx {
 class Size;
@@ skipping 74 matching lines @@
   // is shared with the compositor context, e.g. to create a texture in its
   // namespace. The caller gets ownership of the object.
   // This will return NULL when using out-of-process (command buffer) contexts.
   virtual gfx::ScopedMakeCurrent* GetScopedMakeCurrent() = 0;
 
   virtual void AddObserver(ImageTransportFactoryObserver* observer) = 0;
   virtual void RemoveObserver(ImageTransportFactoryObserver* observer) = 0;
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_FACTORY_H_