Merge "Wait for the user to fully stop before starting" into pi-dev

import android.os.IProgressListener;

import android.os.IRemoteCallback;

import android.os.IUserManager;

import android.os.Looper;

import android.os.Message;

import android.os.Process;

import android.os.RemoteCallbackList;

                    updateStartedUserArrayLU();

                    needStart = true;

                    updateUmState = true;

                } else if (uss.state == UserState.STATE_SHUTDOWN && !isCallingOnHandlerThread()) {

                    Slog.i(TAG, "User #" + userId

                            + " is shutting down - will start after full stop");

                    mHandler.post(() -> startUser(userId, foreground, unlockListener));

                    return true;

                }

                final Integer userIdInt = userId;

                mUserLru.remove(userIdInt);

        return true;

    }

    private boolean isCallingOnHandlerThread() {

        return Looper.myLooper() == mHandler.getLooper();

    }

    /**

     * Start user, if its not already running, and bring it to foreground.

     */