cc: Remove EnsureRenderSurfaceLayerList, do UpdateDrawProps when needed.

cc/trees/layer_tree_impl.h

Index: cc/trees/layer_tree_impl.h
diff --git a/cc/trees/layer_tree_impl.h b/cc/trees/layer_tree_impl.h
index 95f702fb549f2b8a6c518737eb360dfa64c978e1..35e5e1397d5f499e8342341c9509d1ed7ed70fa9 100644
--- a/cc/trees/layer_tree_impl.h
+++ b/cc/trees/layer_tree_impl.h
@@ -167,8 +167,8 @@ class CC_EXPORT LayerTreeImpl {
   float sent_page_scale_delta() const { return sent_page_scale_delta_; }
 
   // Updates draw properties and render surface layer list, as well as tile
-  // priorities.
-  void UpdateDrawProperties();
+  // priorities. Returns false if it was unable to update.
+  bool UpdateDrawProperties();
 
   void set_needs_update_draw_properties() {
     needs_update_draw_properties_ = true;