cc : Use effect tree to determine if a layer is inside replica

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 4c1fab2ebfd43a43d6934a04f6eeb85d15102b32..b36b914852dcaaa9d9b0e06cdc14e2543df3ea5c 100644
--- a/cc/trees/property_tree.h
+++ b/cc/trees/property_tree.h
@@ -271,6 +271,9 @@ struct CC_EXPORT EffectNodeData {
   int num_copy_requests_in_subtree;
   int transform_id;
   int clip_id;
+  // For a node that creates a render surface, target_id is the id of the
+  // render surface's target.

[ajuma, 2016/03/29 13:41:10]

For a node that corresponds to a surface, it looks like the target_id is the
node's own id, not the id of the surface's target. If that's the intended
behavior, please clarify the comment.

[jaydasika, 2016/03/29 16:03:45]

Done.

+  int target_id;
 
   bool operator==(const EffectNodeData& other) const;