hg: openjfx/jfx-dev/rt: 8198316: MediaPlayer crashes when playing m3u8 files on macOS High Sierra 10.13.2

[alexander.matveev at oracle.com]

Changeset: d4c0f65a3bbb
Author:    almatvee
Date:      2018-02-16 15:58 -0800
URL:       http://hg.openjdk.java.net/openjfx/jfx-dev/rt/rev/d4c0f65a3bbb

8198316: MediaPlayer crashes when playing m3u8 files on macOS High Sierra 10.13.2
Reviewed-by: kcr

! modules/javafx.media/src/main/native/jfxmedia/platform/osx/avf/AVFMediaPlayer.h
! modules/javafx.media/src/main/native/jfxmedia/platform/osx/avf/AVFMediaPlayer.mm