CAAudioStreamDescription should be held like a value type This is work towards removing CAAudioStreamDescription and using AudioStreamDescription
<rdar://problem/102128846>
Pull request: https://github.com/WebKit/WebKit/pull/6286
Committed 256562@main (0b3759dd1cde): <https://commits.webkit.org/256562@main> Reviewed commits have been landed. Closing PR #6286 and removing active labels.