Moves mash/wm/public -> ash/public

ash/public/interfaces/shelf_layout.mojom

 // 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.
 
-module mash.wm.mojom;
+module ash.mojom;
 
 import "mash/shelf/public/interfaces/shelf_constants.mojom";
 
 // Used by mojo:ash_sysui to push the current shelf state to its layout manager.
 interface ShelfLayout {
   // TODO: Update preferred sizes with alignment to avoid flicker during layout.
   SetAlignment(mash.shelf.mojom.Alignment alignment);
   SetAutoHideBehavior(mash.shelf.mojom.AutoHideBehavior auto_hide);
-};
+};