Removes ash::mus::RootWindowController

ash/mus/test/wm_test_helper.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_MUS_TEST_WM_TEST_HELPER_H_
 #define ASH_MUS_TEST_WM_TEST_HELPER_H_
 
 #include <memory>
 
 #include "ash/mus/window_manager_application.h"
@@ skipping 11 matching lines @@
 
 namespace ui {
 class WindowTreeClientPrivate;
 }
 
 namespace views {
 class ViewsDelegate;
 }
 
 namespace ash {
-namespace mus {
 
 class RootWindowController;
 
+namespace mus {
+
 // WMTestHelper is responsible for configuring a WindowTreeClient that
 // does not talk to mus.
 class WmTestHelper {
  public:
   WmTestHelper();
   ~WmTestHelper();
 
   void Init();
 
   WindowManagerApplication* window_manager_app() {
@@ skipping 36 matching lines @@
 
   std::unique_ptr<base::SequencedWorkerPoolOwner> blocking_pool_owner_;
 
   DISALLOW_COPY_AND_ASSIGN(WmTestHelper);
 };
 
 }  // namespace mus
 }  // namespace ash
 
 #endif  // ASH_MUS_TEST_WM_TEST_HELPER_H_