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

chrome/browser/renderer_host/backing_store_mac.mm

Index: chrome/browser/renderer_host/backing_store_mac.mm
diff --git a/chrome/browser/renderer_host/backing_store_mac.mm b/chrome/browser/renderer_host/backing_store_mac.mm
index bea378f337cec5c00fc92210a4184a5b3d6a7d92..318656c26d9916fb24eaaf1c0ea96672596da0ac 100644
--- a/chrome/browser/renderer_host/backing_store_mac.mm
+++ b/chrome/browser/renderer_host/backing_store_mac.mm
@@ -54,7 +54,8 @@ BackingStoreMac::~BackingStoreMac() {
 
 void BackingStoreMac::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) {
@@ -64,7 +65,7 @@ void BackingStoreMac::PaintToBackingStore(
 
   DCHECK_NE(static_cast<bool>(cg_layer()), static_cast<bool>(cg_bitmap()));
 
-  TransportDIB* dib = process->GetTransportDIB(bitmap);
+  TransportDIB* dib = process->GetTransportDIB(dib_id, dib_handle);
   if (!dib)
     return;