Wires up painting of layerless children

ui/aura/window.h

Index: ui/aura/window.h
diff --git a/ui/aura/window.h b/ui/aura/window.h
index 5527f81218d023dd5bafc9efcf429beca59d9284..f2a5672529b4d85d9dceaefcf43202dad5d5a746 100644
--- a/ui/aura/window.h
+++ b/ui/aura/window.h
@@ -402,6 +402,13 @@ class AURA_EXPORT Window : public ui::LayerDelegate,
   // Schedules a paint for the Window's entire bounds.
   void SchedulePaint();
 
+  // Asks the delegate to paint the window and invokes PaintLayerlessChildren()
+  // to paint any children with no layers.
+  void Paint(gfx::Canvas* canvas);
+
+  // Paints any layerless children to |canvas|.
+  void PaintLayerlessChildren(gfx::Canvas* canvas);
+
   // Gets a Window (either this one or a subwindow) containing |local_point|.
   // If |return_tightest| is true, returns the tightest-containing (i.e.
   // furthest down the hierarchy) Window containing the point; otherwise,