Makes native_widget_types forward declare ui::Cursor.

ui/views/widget/desktop_aura/desktop_native_widget_aura.h

 // 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.
 
 #ifndef UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_
 
 #include "base/memory/weak_ptr.h"
 #include "ui/aura/client/activation_change_observer.h"
 #include "ui/aura/client/activation_delegate.h"
 #include "ui/aura/client/drag_drop_delegate.h"
 #include "ui/aura/client/focus_change_observer.h"
 #include "ui/aura/root_window_observer.h"
 #include "ui/aura/window_delegate.h"
+#include "ui/base/cursor/cursor.h"
 #include "ui/views/ime/input_method_delegate.h"
 #include "ui/views/widget/native_widget_private.h"
 
 namespace aura {
 class RootWindow;
 namespace client {
 class StackingClient;
 }
 }
 
@@ skipping 246 matching lines @@
   // Reorders child windows of |window_| associated with a view based on the
   // order of the associated views in the widget's view hierarchy.
   scoped_ptr<WindowReorderer> window_reorderer_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNativeWidgetAura);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_NATIVE_WIDGET_AURA_H_