Move mus to //services/ui

components/mus/ws/user_id_tracker.cc

-// 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.
-
-#include "components/mus/ws/user_id_tracker.h"
-
-#include "components/mus/ws/user_id_tracker_observer.h"
-#include "services/shell/public/interfaces/connector.mojom.h"
-
-namespace mus {
-namespace ws {
-
-UserIdTracker::UserIdTracker() : active_id_(shell::mojom::kRootUserID) {
-  ids_.insert(active_id_);
-}
-
-UserIdTracker::~UserIdTracker() {
-}
-
-bool UserIdTracker::IsValidUserId(const UserId& id) const {
-  return ids_.count(id) > 0;
-}
-
-void UserIdTracker::SetActiveUserId(const UserId& id) {
-  DCHECK(IsValidUserId(id));
-  if (id == active_id_)
-    return;
-
-  const UserId previously_active_id = active_id_;
-  active_id_ = id;
-  FOR_EACH_OBSERVER(UserIdTrackerObserver, observers_,
-                    OnActiveUserIdChanged(previously_active_id, id));
-}
-
-void UserIdTracker::AddUserId(const UserId& id) {
-  if (IsValidUserId(id))
-    return;
-
-  ids_.insert(id);
-  FOR_EACH_OBSERVER(UserIdTrackerObserver, observers_, OnUserIdAdded(id));
-}
-
-void UserIdTracker::RemoveUserId(const UserId& id) {
-  DCHECK(IsValidUserId(id));
-  ids_.erase(id);
-  FOR_EACH_OBSERVER(UserIdTrackerObserver, observers_, OnUserIdRemoved(id));
-}
-
-void UserIdTracker::AddObserver(UserIdTrackerObserver* observer) {
-  observers_.AddObserver(observer);
-}
-
-void UserIdTracker::RemoveObserver(UserIdTrackerObserver* observer) {
-  observers_.RemoveObserver(observer);
-}
-
-void UserIdTracker::Bind(mojom::UserAccessManagerRequest request) {
-  bindings_.AddBinding(this, std::move(request));
-}
-
-void UserIdTracker::SetActiveUser(const mojo::String& user_id) {
-  if (!IsValidUserId(user_id))
-    AddUserId(user_id);
-  SetActiveUserId(user_id);
-}
-
-}  // namespace ws
-}  // namespace mus