On Windows, create a new TransportDIB::Handle struct which includes the file

chrome/plugin/webplugin_proxy.h

 // Copyright (c) 2010 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 CHROME_PLUGIN_WEBPLUGIN_PROXY_H_
 #define CHROME_PLUGIN_WEBPLUGIN_PROXY_H_
 #pragma once
 
 #include <string>
 
@@ skipping 187 matching lines @@
   WebPluginDelegateImpl* delegate_;
   gfx::Rect damaged_rect_;
   bool waiting_for_paint_;
   gfx::NativeViewId containing_window_;
   // The url of the main frame hosting the plugin.
   GURL page_url_;
 
   // Variables used for desynchronized windowless plugin painting.  See note in
   // webplugin_delegate_proxy.h for how this works.
   bool transparent_;
-#if defined(OS_MACOSX)
   scoped_ptr<TransportDIB> windowless_dib_;
   scoped_ptr<TransportDIB> background_dib_;
+#if defined(OS_MACOSX)
   base::mac::ScopedCFTypeRef<CGContextRef> windowless_context_;
   base::mac::ScopedCFTypeRef<CGContextRef> background_context_;
   scoped_ptr<WebPluginAcceleratedSurfaceProxy> accelerated_surface_;
 #else
   scoped_ptr<skia::PlatformCanvas> windowless_canvas_;
   scoped_ptr<skia::PlatformCanvas> background_canvas_;
 
 #if defined(USE_X11)
-  scoped_ptr<TransportDIB> windowless_dib_;
-  scoped_ptr<TransportDIB> background_dib_;
   // If we can use SHM pixmaps for windowless plugin painting or not.
   bool use_shm_pixmap_;
   // The SHM pixmap for windowless plugin painting.
   XID windowless_shm_pixmap_;
 #endif
 
 #endif
 
   // Contains the routing id of the host render view.
   int host_render_view_routing_id_;
 
   ScopedRunnableMethodFactory<WebPluginProxy> runnable_method_factory_;
 };
 
 #endif  // CHROME_PLUGIN_WEBPLUGIN_PROXY_H_