Move mus to //services/ui

services/ui/ws/user_id_tracker_observer.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 COMPONENTS_MUS_WS_USER_ID_TRACKER_OBSERVER_H_
-#define COMPONENTS_MUS_WS_USER_ID_TRACKER_OBSERVER_H_
+#ifndef SERVICES_UI_WS_USER_ID_TRACKER_OBSERVER_H_
+#define SERVICES_UI_WS_USER_ID_TRACKER_OBSERVER_H_
 
 #include <stdint.h>
 
-#include "components/mus/ws/user_id.h"
+#include "services/ui/ws/user_id.h"
 
 namespace mus {
 namespace ws {
 
 class UserIdTrackerObserver {
  public:
   virtual void OnActiveUserIdChanged(const UserId& previously_active_id,
                                      const UserId& active_id) {}
   virtual void OnUserIdAdded(const UserId& id) {}
   virtual void OnUserIdRemoved(const UserId& id) {}
 
  protected:
   virtual ~UserIdTrackerObserver() {}
 };
 
 }  // namespace ws
 }  // namespace mus
 
-#endif  // COMPONENTS_MUS_WS_USER_ID_TRACKER_OBSERVER_H_
+#endif  // SERVICES_UI_WS_USER_ID_TRACKER_OBSERVER_H_