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

chrome/browser/renderer_host/backing_store_x.cc

 // 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.
 
 #include "chrome/browser/renderer_host/backing_store_x.h"
 
 #include <cairo-xlib.h>
 #include <gtk/gtk.h>
 #include <stdlib.h>
 #include <sys/ipc.h>
@@ skipping 140 matching lines @@
               copy_rect.height(),               // height
               copy_rect.x(),                    // dest_x
               copy_rect.y());                   // dest_y
   }
 
   XFreePixmap(display_, pixmap);
 }
 
 void BackingStoreX::PaintToBackingStore(
     RenderProcessHost* process,
-    TransportDIB::Id bitmap,
+    TransportDIB::Id dib_id,
+    TransportDIB::Handle dib_handle,
     const gfx::Rect& bitmap_rect,
     const std::vector<gfx::Rect>& copy_rects,
     bool* painted_synchronously) {
+  TransportDIB::ScopedHandle scoped_dib_handle(dib_handle);
   // Our paints are always synchronous and the caller can free the TransportDIB
   // when we're done, even on error.
   *painted_synchronously = true;
 
   if (!display_)
     return;
 
   if (bitmap_rect.IsEmpty())
     return;
 
   const int width = bitmap_rect.width();
   const int height = bitmap_rect.height();
 
   if (width <= 0 || width > kMaxVideoLayerSize ||
       height <= 0 || height > kMaxVideoLayerSize)
     return;
 
-  TransportDIB* dib = process->GetTransportDIB(bitmap);
+  TransportDIB* dib = process->GetTransportDIB(dib_id,
+                                               scoped_dib_handle.release());
   if (!dib)
     return;
 
   if (!use_render_)
     return PaintRectWithoutXrender(dib, bitmap_rect, copy_rects);
 
   Picture picture;
   Pixmap pixmap;
 
   if (shared_memory_support_ == x11_util::SHARED_MEMORY_PIXMAP) {
@@ skipping 279 matching lines @@
   cairo_set_source(cr, pattern);
   cairo_pattern_destroy(pattern);
 
   cairo_identity_matrix(cr);
 
   cairo_rectangle(cr, rect.x(), rect.y(), rect.width(), rect.height());
   cairo_fill(cr);
   cairo_destroy(cr);
 }
 #endif