Move mus to //services/ui

components/mus/ws/user_id_tracker.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_H_
-#define COMPONENTS_MUS_WS_USER_ID_TRACKER_H_
-
-#include <stdint.h>
-
-#include <set>
-
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "components/mus/public/interfaces/user_access_manager.mojom.h"
-#include "components/mus/ws/user_id.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-
-namespace mus {
-namespace ws {
-
-class UserIdTrackerObserver;
-
-// Tracks the set of known/valid user ids.
-class UserIdTracker : public mojom::UserAccessManager {
- public:
-  UserIdTracker();
-  ~UserIdTracker() override;
-
-  bool IsValidUserId(const UserId& id) const;
-
-  const UserId& active_id() const { return active_id_; }
-
-  // Adds a new known user. Does nothing if |id| is not known.
-  void SetActiveUserId(const UserId& id);
-  void AddUserId(const UserId& id);
-  void RemoveUserId(const UserId& id);
-
-  void AddObserver(UserIdTrackerObserver* observer);
-  void RemoveObserver(UserIdTrackerObserver* observer);
-
-  void Bind(mojom::UserAccessManagerRequest request);
-
- private:
-  using UserIdSet = std::set<UserId>;
-
-  // mojom::UserAccessManager:
-  void SetActiveUser(const mojo::String& user_id) override;
-
-  base::ObserverList<UserIdTrackerObserver> observers_;
-
-  UserIdSet ids_;
-  UserId active_id_;
-
-  mojo::BindingSet<mojom::UserAccessManager> bindings_;
-
-  DISALLOW_COPY_AND_ASSIGN(UserIdTracker);
-};
-
-}  // namespace ws
-}  // namespace mus
-
-#endif  // COMPONENTS_MUS_WS_USER_ID_TRACKER_H_