Refactor menu controller to isolate aura dependency.

ui/views/widget/widget.h

Index: ui/views/widget/widget.h
diff --git a/ui/views/widget/widget.h b/ui/views/widget/widget.h
index 87f702dde0eb1e8563b411c38965035bfb42ce4d..da66d0ee9429245c3eb7819838ec341b3838d3da 100644
--- a/ui/views/widget/widget.h
+++ b/ui/views/widget/widget.h
@@ -496,6 +496,9 @@ class VIEWS_EXPORT Widget : public internal::NativeWidgetDelegate,
   // underlying windowing system.
   void SetOpacity(unsigned char opacity);
 
+  // Sets whether a shadow should be drawn around the window.

[tapted, 2014/05/08 00:25:28]

nit: I think this needs a more verbose comment. Something like

  // Informs the window manager whether to create a rectangular shadow around
  // the window, and keep it updated in response to activation changes.

[Andre, 2014/05/09 01:10:01]

Done.

+  void SetHasActivationShadow(bool has_shadow);
+
   // Sets whether or not the window should show its frame as a "transient drag
   // frame" - slightly transparent and without the standard window controls.
   void SetUseDragFrame(bool use_drag_frame);