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

chrome/browser/renderer_host/backing_store_manager.cc

Index: chrome/browser/renderer_host/backing_store_manager.cc
diff --git a/chrome/browser/renderer_host/backing_store_manager.cc b/chrome/browser/renderer_host/backing_store_manager.cc
index 4325f313b3df587a56b084cc0c6d6f5b98d9ee0c..745020f633102791ceda1a80ee145912c047efb0 100644
--- a/chrome/browser/renderer_host/backing_store_manager.cc
+++ b/chrome/browser/renderer_host/backing_store_manager.cc
@@ -193,7 +193,8 @@ BackingStore* BackingStoreManager::GetBackingStore(
 void BackingStoreManager::PrepareBackingStore(
     RenderWidgetHost* host,
     const gfx::Size& backing_store_size,
-    TransportDIB::Id bitmap,
+    TransportDIB::Id dib_id,
+    TransportDIB::Handle dib_handle,
     const gfx::Rect& bitmap_rect,
     const std::vector<gfx::Rect>& copy_rects,
     bool* needs_full_paint,
@@ -217,8 +218,11 @@ void BackingStoreManager::PrepareBackingStore(
     backing_store = CreateBackingStore(host, backing_store_size);
   }
 
-  backing_store->PaintToBackingStore(host->process(), bitmap,
-                                     bitmap_rect, copy_rects,
+  backing_store->PaintToBackingStore(host->process(),
+                                     dib_id,
+                                     dib_handle,
+                                     bitmap_rect,
+                                     copy_rects,
                                      painted_synchronously);
 }