Wires up drag/drop for aura-mus

ui/views/mus/native_widget_mus.h

 // Copyright 2015 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.
 
 #ifndef UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_
 #define UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "services/ui/public/cpp/input_event_handler.h"
 #include "services/ui/public/interfaces/window_tree.mojom.h"
+#include "ui/aura/client/drag_drop_delegate.h"
 #include "ui/aura/window_delegate.h"
 #include "ui/aura/window_tree_host_observer.h"
 #include "ui/platform_window/platform_window_delegate.h"
 #include "ui/views/mus/mus_export.h"
 #include "ui/views/mus/window_tree_host_mus.h"
 #include "ui/views/widget/native_widget_private.h"
-#include "ui/wm/public/drag_drop_delegate.h"
 
 namespace aura {
 namespace client {
 class DefaultCaptureClient;
 class DragDropClient;
 class ScreenPositionClient;
 class WindowParentingClient;
 }
 class Window;
 }
@@ skipping 272 matching lines @@
   std::unique_ptr<InputMethodMus> input_method_;
 
   base::WeakPtrFactory<NativeWidgetMus> close_widget_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetMus);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_MUS_NATIVE_WIDGET_MUS_H_