Update from https://crrev.com/309717

cc/layers/draw_properties.h

Index: cc/layers/draw_properties.h
diff --git a/cc/layers/draw_properties.h b/cc/layers/draw_properties.h
index 2e5408396e566703d3bce8b201bad33d898b0d58..5c78000226875bc1c67d804b0c945211d8f656c4 100644
--- a/cc/layers/draw_properties.h
+++ b/cc/layers/draw_properties.h
@@ -79,9 +79,6 @@ struct CC_EXPORT DrawProperties {
   // ancestor of this layer.
   LayerType* render_target;
 
-  // The surface that this layer and its subtree would contribute to.
-  scoped_ptr<typename LayerType::RenderSurfaceType> render_surface;
-
   // This rect is in the layer's content space.
   gfx::Rect visible_content_rect;