Remove stray platform_file.h from content

content/shell/renderer/shell_content_renderer_client.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_SHELL_SHELL_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_SHELL_SHELL_CONTENT_RENDERER_CLIENT_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/platform_file.h"
 #include "content/public/renderer/content_renderer_client.h"
 
 namespace blink {
 class WebFrame;
 class WebPlugin;
 struct WebPluginParams;
 }
 
 namespace content {
 
@@ skipping 32 matching lines @@
  private:
   void WebTestProxyCreated(RenderView* render_view, WebTestProxyBase* proxy);
 
   scoped_ptr<ShellRenderProcessObserver> shell_observer_;
   scoped_ptr<MockWebClipboardImpl> clipboard_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_SHELL_CONTENT_RENDERER_CLIENT_H_