Enqueuing new frames in a Surface should cause Displays to reaggregate it

mojo/services/surfaces/surfaces_impl.cc

Index: mojo/services/surfaces/surfaces_impl.cc
diff --git a/mojo/services/surfaces/surfaces_impl.cc b/mojo/services/surfaces/surfaces_impl.cc
index 141d0c4a0eea06fa4f7acbad0c235d8146fafb34..009e1b2b205cde98b4265ce504ec41fd3021c5bb 100644
--- a/mojo/services/surfaces/surfaces_impl.cc
+++ b/mojo/services/surfaces/surfaces_impl.cc
@@ -96,4 +96,7 @@ scoped_ptr<cc::OutputSurface> SurfacesImpl::CreateOutputSurface() {
       new ContextProviderMojo(command_buffer_handle_.Pass())));
 }
 
+void SurfacesImpl::DisplayDamaged() {
+}
+
 }  // namespace mojo