cc : Layers with singular transforms and copy request should be drawn

cc/trees/property_tree.h

Index: cc/trees/property_tree.h
diff --git a/cc/trees/property_tree.h b/cc/trees/property_tree.h
index 86705350dbaea9c6f2d2cb90712b190fd39b367e..43d8d3913814097c613c4d5a1057884dfe504d03 100644
--- a/cc/trees/property_tree.h
+++ b/cc/trees/property_tree.h
@@ -378,8 +378,6 @@ class CC_EXPORT EffectTree final : public PropertyTree<EffectNode> {
   bool HasCopyRequests() const;
   void ClearCopyRequests();
 
-  int ClosestAncestorWithCopyRequest(int id) const;
-
   // Given the ids of two effect nodes that have render surfaces, returns the
   // id of the lowest common ancestor effect node that also has a render
   // surface.
@@ -413,6 +411,8 @@ class CC_EXPORT EffectTree final : public PropertyTree<EffectNode> {
       LayerTreeImpl* layer_tree_impl);
 
  private:
+  void UpdateClosestAncestorWithCopyRequestId(EffectNode* node,
+                                              EffectNode* parent_node);
   void UpdateOpacities(EffectNode* node, EffectNode* parent_node);
   void UpdateIsDrawn(EffectNode* node, EffectNode* parent_node);
   void UpdateBackfaceVisibility(EffectNode* node, EffectNode* parent_node);