Refactor menu controller to isolate aura dependency.

ui/views/widget/desktop_aura/desktop_native_widget_aura.cc

Index: ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
diff --git a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
index 914c1d24a83c462a87c35a24314b3c2cb8a4f00d..fee3f32853669e492817f11f3245cc8f32684b86 100644
--- a/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
+++ b/ui/views/widget/desktop_aura/desktop_native_widget_aura.cc
@@ -836,6 +836,12 @@ void DesktopNativeWidgetAura::SetOpacity(unsigned char opacity) {
     desktop_window_tree_host_->SetOpacity(opacity);
 }
 
+void DesktopNativeWidgetAura::SetHasShadow(bool has_shadow) {
+  if (content_window_)
+    SetShadowType(content_window_, has_shadow ? wm::SHADOW_TYPE_RECTANGULAR
+                                              : wm::SHADOW_TYPE_NONE);
+}
+
 void DesktopNativeWidgetAura::SetUseDragFrame(bool use_drag_frame) {
 }