Support distributing vsync info with surfaces.

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 55844c20103d8b051a31e04bac0c18ba2ffbadf5..52a1efe81245a5f5e4fdb209a9e9d22ef39add07 100644
--- a/mojo/services/surfaces/surfaces_impl.cc
+++ b/mojo/services/surfaces/surfaces_impl.cc
@@ -104,4 +104,8 @@ void SurfacesImpl::DidSwapBuffers() {
 void SurfacesImpl::DidSwapBuffersComplete() {
 }
 
+void SurfacesImpl::CommitVSyncParameters(base::TimeTicks timebase,
+                                         base::TimeDelta interval) {
+}
+
 }  // namespace mojo