Moves mash/wm into ash/mus

ash/mus/shelf_layout_impl.h

 // Copyright 2015 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 MASH_WM_SHELF_LAYOUT_IMPL_H_
-#define MASH_WM_SHELF_LAYOUT_IMPL_H_
+#ifndef ASH_MUS_SHELF_LAYOUT_IMPL_H_
+#define ASH_MUS_SHELF_LAYOUT_IMPL_H_
 
 #include "ash/public/interfaces/shelf_layout.mojom.h"
 #include "base/macros.h"
 
-namespace mash {
-namespace wm {
+namespace ash {
+namespace mus {
 
 class RootWindowController;
 
 // Implements the ShelfLayout mojo interface to listen for layout changes from
 // the system UI application.
-class ShelfLayoutImpl : public ash::mojom::ShelfLayout {
+class ShelfLayoutImpl : public mojom::ShelfLayout {
  public:
   ShelfLayoutImpl();
   ~ShelfLayoutImpl() override;
 
   void Initialize(RootWindowController* root_controller);
 
  private:
   // Overridden from mojom::ShelfLayout:
   void SetAlignment(mash::shelf::mojom::Alignment alignment) override;
   void SetAutoHideBehavior(
       mash::shelf::mojom::AutoHideBehavior auto_hide) override;
 
   RootWindowController* root_controller_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfLayoutImpl);
 };
 
-}  // namespace wm
-}  // namespace mash
+}  // namespace mus
+}  // namespace ash
 
-#endif  // MASH_WM_SHELF_LAYOUT_IMPL_H_
+#endif  // ASH_MUS_SHELF_LAYOUT_IMPL_H_