mash: Disable ash_sysui; begin removal.

ash/sysui/user_wallpaper_delegate_mus.h

 // Copyright 2016 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 ASH_SYSUI_USER_WALLPAPER_DELEGATE_MUS_H_
 #define ASH_SYSUI_USER_WALLPAPER_DELEGATE_MUS_H_
 
 #include "ash/desktop_background/user_wallpaper_delegate.h"
-#include "ash/sysui/public/interfaces/wallpaper.mojom.h"
+#include "ash/public/interfaces/wallpaper.mojom.h"
 #include "base/macros.h"
 
 namespace ash {
 namespace sysui {
 
 class UserWallpaperDelegateMus : public UserWallpaperDelegate,
                                  public mojom::WallpaperController {
  public:
   UserWallpaperDelegateMus();
   ~UserWallpaperDelegateMus() override;
@@ skipping 15 matching lines @@
   void SetWallpaper(const SkBitmap& wallpaper,
                     mojom::WallpaperLayout layout) override;
 
   DISALLOW_COPY_AND_ASSIGN(UserWallpaperDelegateMus);
 };
 
 }  // namespace sysui
 }  // namespace ash
 
 #endif  // ASH_SYSUI_USER_WALLPAPER_DELEGATE_MUS_H_