Fix possible NPE in MediaSessionManager

     * @return {@code true} if the remote user is trusted and its package name matches with the UID.

     *            {@code false} otherwise.

     */

    public boolean isTrustedForMediaControl(RemoteUserInfo userInfo) {

    public boolean isTrustedForMediaControl(@NonNull RemoteUserInfo userInfo) {

        if (userInfo == null) {

            throw new IllegalArgumentException("userInfo may not be null");

        }

        if (userInfo.getPackageName() == null) {

            return false;

        }