Out-of-band tracks labeled as DEFAULT=YES are not treated as default in track selection logic
<rdar://problem/99399024>
Pull request: https://github.com/WebKit/WebKit/pull/3872
Committed 254119@main (1ec4ef39b2e7): <https://commits.webkit.org/254119@main> Reviewed commits have been landed. Closing PR #3872 and removing active labels.