Partial swaps on OSX

content/browser/renderer_host/accelerated_surface_container_manager_mac.cc

Index: content/browser/renderer_host/accelerated_surface_container_manager_mac.cc
diff --git a/content/browser/renderer_host/accelerated_surface_container_manager_mac.cc b/content/browser/renderer_host/accelerated_surface_container_manager_mac.cc
index 8b529672f3166d29b7da41170f8468b716966d37..84b6229260f812fbbdfafc100ae2182044a0422e 100644
--- a/content/browser/renderer_host/accelerated_surface_container_manager_mac.cc
+++ b/content/browser/renderer_host/accelerated_surface_container_manager_mac.cc
@@ -145,6 +145,16 @@ void AcceleratedSurfaceContainerManagerMac::SetSurfaceWasPaintedTo(
     container->set_was_painted_to(surface_id);
 }
 
+void AcceleratedSurfaceContainerManagerMac::SetSurfaceWasPaintedTo(
+    gfx::PluginWindowHandle id, uint64 surface_id,
+    int x, int y, int width, int height) {
+  base::AutoLock lock(lock_);
+
+  AcceleratedSurfaceContainerMac* container = MapIDToContainer(id);
+  if (container)
+    container->set_was_painted_to(surface_id, x, y, width, height);
+}
+
 void AcceleratedSurfaceContainerManagerMac::SetRootSurfaceInvalid() {
   base::AutoLock lock(lock_);
   if (root_container_)