Return resources immediately after a Surface is destroyed

cc/surfaces/display.cc

Index: cc/surfaces/display.cc
diff --git a/cc/surfaces/display.cc b/cc/surfaces/display.cc
index e3693207031f15a0056d3d9600f33b45476f3d10..846897b21806db19b8c100a9660caa75ee05f441 100644
--- a/cc/surfaces/display.cc
+++ b/cc/surfaces/display.cc
@@ -412,6 +412,11 @@ void Display::OnSurfaceDamaged(const SurfaceId& surface_id, bool* changed) {
 
 void Display::OnSurfaceCreated(const SurfaceInfo& surface_info) {}
 
+void Display::OnSurfaceDiscarded(const SurfaceId& surface_id) {
+  if (aggregator_)
+    aggregator_->ReleaseResources(surface_id);
+}
+
 const SurfaceId& Display::CurrentSurfaceId() {
   return current_surface_id_;
 }