Fix javadocs.

     * {@link android.view.WindowManager.LayoutParams#FLAG_FULLSCREEN}

     * may still be interrupted by high-priority notifications; for example, an

     * incoming phone call may use

     * {@link * android.app.Notification#fullScreenIntent fullScreenIntent}

     * {@link android.app.Notification#fullScreenIntent fullScreenIntent}

     * to present a full-screen in-call activity to the user, pausing the

     * current activity as a side-effect. An activity with

     * {@link #FLAG_IMMERSIVE} set, however, will not be interrupted; the