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

chrome/browser/renderer_host/backing_store_win.cc

Index: chrome/browser/renderer_host/backing_store_win.cc
diff --git a/chrome/browser/renderer_host/backing_store_win.cc b/chrome/browser/renderer_host/backing_store_win.cc
index 94d9cbf4b9bf86a2ea52cd91e2b828c0f2f40906..b8385d34737891288e0b44ca4e38129eb0d9ca67 100644
--- a/chrome/browser/renderer_host/backing_store_win.cc
+++ b/chrome/browser/renderer_host/backing_store_win.cc
@@ -69,7 +69,8 @@ void CallStretchDIBits(HDC hdc, int dest_x, int dest_y, int dest_w, int dest_h,
 
 }  // namespace
 
-BackingStoreWin::BackingStoreWin(RenderWidgetHost* widget, const gfx::Size& size)
+BackingStoreWin::BackingStoreWin(RenderWidgetHost* widget,
+                                 const gfx::Size& size)
     : BackingStore(widget, size),
       backing_store_dib_(NULL),
       original_bitmap_(NULL) {
@@ -114,10 +115,12 @@ size_t BackingStoreWin::MemorySize() {
 
 void BackingStoreWin::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 TransportDIB can be freed when
   // we're done (even on error).
   *painted_synchronously = true;
@@ -132,7 +135,8 @@ void BackingStoreWin::PaintToBackingStore(
     original_bitmap_ = SelectObject(hdc_, backing_store_dib_);
   }
 
-  TransportDIB* dib = process->GetTransportDIB(bitmap);
+  TransportDIB* dib = process->GetTransportDIB(dib_id,
+                                               scoped_dib_handle.release());
   if (!dib)
     return;