Move Aura to UI subdir.

ui/aura/desktop_host_win.h

 // Copyright (c) 2011 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 AURA_DESKTOP_HOST_WIN_H_
-#define AURA_DESKTOP_HOST_WIN_H_
+#ifndef UI_AURA_DESKTOP_HOST_WIN_H_
+#define UI_AURA_DESKTOP_HOST_WIN_H_
 #pragma once
 
-#include "aura/desktop_host.h"
 #include "base/compiler_specific.h"
+#include "ui/aura/desktop_host.h"
 #include "ui/base/win/window_impl.h"
 
 namespace aura {
 
 class DesktopHostWin : public DesktopHost, public ui::WindowImpl {
  public:
   explicit DesktopHostWin(const gfx::Rect& bounds);
   virtual ~DesktopHostWin();
 
   // MessageLoop::Dispatcher:
@@ skipping 29 matching lines @@
   void OnPaint(HDC dc);
   void OnSize(UINT param, const CSize& size);
 
   Desktop* desktop_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopHostWin);
 };
 
 }  // namespace aura
 
-#endif  // AURA_DESKTOP_HOST_WIN_H_
+#endif  // UI_AURA_DESKTOP_HOST_WIN_H_