Refactor menu controller to isolate aura dependency.

ui/views/controls/menu/menu_host.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/controls/menu/menu_host.h"
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
 #include "ui/events/gestures/gesture_recognizer.h"
 #include "ui/gfx/path.h"
@@ skipping 57 matching lines @@
 }
 
 void MenuHost::ShowMenuHost(bool do_capture) {
   // Doing a capture may make us get capture lost. Ignore it while we're in the
   // process of showing.
   base::AutoReset<bool> reseter(&ignore_capture_lost_, true);
   ShowInactive();
   if (do_capture) {
     // 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);
+    ui::GestureRecognizer::Get()->TransferEventsTo(NULL, NULL);
     native_widget_private()->SetCapture();
   }
 }
 
 void MenuHost::HideMenuHost() {
   ignore_capture_lost_ = true;
   ReleaseMenuHostCapture();
   Hide();
   ignore_capture_lost_ = false;
 }
@@ skipping 45 matching lines @@
   if (destroying_)
     return;
 
   MenuController* menu_controller =
       submenu_->GetMenuItem()->GetMenuController();
   if (menu_controller && !menu_controller->drag_in_progress())
     menu_controller->CancelAll();
 }
 
 }  // namespace views