cc: ReadyToDraw notifications.

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 4a01ed73e9fad1670f322870327f48452d933bea..b4af1959f15d9066ff32e4e31d88cee3a00295ac 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -1330,6 +1330,10 @@ void LayerTreeHostImpl::NotifyReadyToActivate() {
   client_->NotifyReadyToActivate();
 }
 
+void LayerTreeHostImpl::NotifyReadyToDraw() {
+  client_->NotifyReadyToDraw();

[danakj, 2014/10/31 18:42:09]

Oh, since if you remove the scheduler plumbing this function is just empty, you
can stick a TODO(danakj) to do something here if you like, or just leave it
empty for now.

+}
+
 void LayerTreeHostImpl::NotifyTileStateChanged(const Tile* tile) {
   TRACE_EVENT0("cc", "LayerTreeHostImpl::NotifyTileStateChanged");