Refactor menu controller to isolate aura dependency.

ui/views/controls/menu/menu_host.cc

Index: ui/views/controls/menu/menu_host.cc
diff --git a/ui/views/controls/menu/menu_host.cc b/ui/views/controls/menu/menu_host.cc
index 5e8593b98ab06b57bc2e780541d1fe18b8f904b4..9f71ce6ece4497480b76aa62ebcdadda3785d0a7 100644
--- a/ui/views/controls/menu/menu_host.cc
+++ b/ui/views/controls/menu/menu_host.cc
@@ -54,8 +54,10 @@ void MenuHost::InitMenuHost(Widget* parent,
   params.bounds = bounds;
   Init(params);
 
+#if defined(USE_AURA)
   if (bubble_border)
     SetShadowType(GetNativeView(), wm::SHADOW_TYPE_NONE);
+#endif
 
   SetContentsView(contents_view);
   if (bubble_border || rounded_border)
@@ -73,9 +75,11 @@ void MenuHost::ShowMenuHost(bool do_capture) {
   base::AutoReset<bool> reseter(&ignore_capture_lost_, true);
   ShowInactive();
   if (do_capture) {
+#if defined(USE_AURA)
     // Cancel existing touches, so we don't miss some touch release/cancel
     // events due to the menu taking capture.
     ui::GestureRecognizer::Get()->TransferEventsTo(GetNativeWindow(), NULL);
+#endif
     native_widget_private()->SetCapture();
   }
 }