Merge "Add documentation for MIN notification interaction with fg services." into oc-mr1-dev

    public static final int IMPORTANCE_NONE = 0;

    /**

     * Min notification importance: only shows in the shade, below the fold.

     * Min notification importance: only shows in the shade, below the fold.  This should

     * not be used with {@link Service#startForeground(int, Notification) Service.startForeground}

     * since a foreground service is supposed to be something the user cares about so it does

     * not make semantic sense to mark its notification as minimum importance.  If you do this

     * as of Android version {@link android.os.Build.VERSION_CODES#O}, the system will show

     * a higher-priority notification about your app running in the background.

     */

    public static final int IMPORTANCE_MIN = 1;