131         private final List<UserId> mUserIds = new ArrayList<>();  field in UserManagerState.RuntimeUserManagerState
154                 synchronized (mUserIds) {
155                     mUserIds.clear();
197             synchronized (mUserIds) {  in getUserIds()
198                 if (mUserIds.isEmpty()) {  in getUserIds()
199                     mUserIds.addAll(getUserIdsInternal());  in getUserIds()
201                 return mUserIds;  in getUserIds()
246                 synchronized (mUserIds) {  in onProfileActionStatusChange()
247                     mUserIds.remove(userId);  in onProfileActionStatusChange()
251                 synchronized (mUserIds) {  in onProfileActionStatusChange()
252                     if (!mUserIds.contains(userId)) {  in onProfileActionStatusChange()
253                         mUserIds.add(userId);  in onProfileActionStatusChange()