mash: Port mojo:ash_sysui's ContextMenuMus to mojo:ash.

chrome/browser/chromeos/background/ash_user_wallpaper_delegate.h

Index: chrome/browser/chromeos/background/ash_user_wallpaper_delegate.h
diff --git a/chrome/browser/chromeos/background/ash_user_wallpaper_delegate.h b/chrome/browser/chromeos/background/ash_user_wallpaper_delegate.h
deleted file mode 100644
index 53ecd064b64df51fd779d15482ace264dcf7525b..0000000000000000000000000000000000000000
--- a/chrome/browser/chromeos/background/ash_user_wallpaper_delegate.h
+++ /dev/null
@@ -1,17 +0,0 @@
-// 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 CHROME_BROWSER_CHROMEOS_BACKGROUND_ASH_USER_WALLPAPER_DELEGATE_H_
-#define CHROME_BROWSER_CHROMEOS_BACKGROUND_ASH_USER_WALLPAPER_DELEGATE_H_
-
-namespace ash {
-class UserWallpaperDelegate;
-}
-
-namespace chromeos {
-
-ash::UserWallpaperDelegate* CreateUserWallpaperDelegate();
-
-}  // namespace chromeos
-#endif  // CHROME_BROWSER_CHROMEOS_BACKGROUND_ASH_USER_WALLPAPER_DELEGATE_H_