cc: Move RenderTarget Information to Effect Tree

cc/trees/layer_tree_host_common.h

Index: cc/trees/layer_tree_host_common.h
diff --git a/cc/trees/layer_tree_host_common.h b/cc/trees/layer_tree_host_common.h
index fa1e6005279c0570a489e18b0b2d8e514aaf9a95..7be66746fd150248248e1697d9cefe663dd89257 100644
--- a/cc/trees/layer_tree_host_common.h
+++ b/cc/trees/layer_tree_host_common.h
@@ -207,7 +207,8 @@ bool LayerTreeHostCommon::RenderSurfaceContributesToTarget(
   //
   // Otherwise, the layer just contributes itself to the target surface.
 
-  return layer->render_target() == layer &&
+  return layer->has_render_surface() &&
+         layer->render_target() == layer->render_surface() &&
          layer->id() != target_surface_layer_id;
 }