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

chrome/plugin/webplugin_proxy.h

Index: chrome/plugin/webplugin_proxy.h
diff --git a/chrome/plugin/webplugin_proxy.h b/chrome/plugin/webplugin_proxy.h
index a33dae7d10e4bc7b63f2e64d7660911df3c1123e..667bb63be921c0adbb0de31d3c4e53fe26cadb69 100644
--- a/chrome/plugin/webplugin_proxy.h
+++ b/chrome/plugin/webplugin_proxy.h
@@ -205,9 +205,9 @@ class WebPluginProxy : public webkit_glue::WebPlugin {
   // 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_;
@@ -216,8 +216,6 @@ class WebPluginProxy : public webkit_glue::WebPlugin {
   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.