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..bad3d4d82e39a650ad498beb291f1350ac8aabcb 100644
--- a/content/browser/renderer_host/accelerated_surface_container_manager_mac.cc
+++ b/content/browser/renderer_host/accelerated_surface_container_manager_mac.cc
@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "content/browser/renderer_host/accelerated_surface_container_mac.h"
 #include "webkit/plugins/npapi/webplugin.h"
+#include "ui/gfx/rect.h"
 
 AcceleratedSurfaceContainerManagerMac::AcceleratedSurfaceContainerManagerMac()
     : current_id_(0),
@@ -145,6 +146,17 @@ void AcceleratedSurfaceContainerManagerMac::SetSurfaceWasPaintedTo(
     container->set_was_painted_to(surface_id);
 }
 
+void AcceleratedSurfaceContainerManagerMac::SetSurfaceWasPaintedTo(
+    gfx::PluginWindowHandle id,
+    uint64 surface_id,
+    const gfx::Rect& update_rect) {
+  base::AutoLock lock(lock_);
+
+  AcceleratedSurfaceContainerMac* container = MapIDToContainer(id);
+  if (container)
+    container->set_was_painted_to(surface_id, update_rect);
+}
+
 void AcceleratedSurfaceContainerManagerMac::SetRootSurfaceInvalid() {
   base::AutoLock lock(lock_);
   if (root_container_)