cc: Move RenderTarget Information to Effect Tree

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 e441ed84f700dd0132a4574f45a21d7d33f84040..5e4b4acc2726d1dc5ac6f170e1d01437db3757d0 100644
--- a/cc/trees/property_tree.h
+++ b/cc/trees/property_tree.h
@@ -30,6 +30,7 @@ class TreeNode;
 }
 
 class LayerTreeImpl;
+class RenderSurfaceImpl;
 class ScrollState;
 struct ScrollAndScaleSet;
 
@@ -261,6 +262,7 @@ struct CC_EXPORT EffectNodeData {
   float screen_space_opacity;
 
   bool has_render_surface;
+  RenderSurfaceImpl* render_surface;
   bool has_copy_request;
   bool has_background_filters;
   bool node_or_ancestor_has_background_filters;
@@ -275,7 +277,7 @@ 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 its own id.
+  // Effect node id of which this effect contributes to.
   int target_id;
 
   bool operator==(const EffectNodeData& other) const;