Same as MSE, so we can avoid a multiqueue in playback pipeline.
Pull request: https://github.com/WebKit/WebKit/pull/10201
Committed 260504@main (4fc57f090e9b): <https://commits.webkit.org/260504@main> Reviewed commits have been landed. Closing PR #10201 and removing active labels.
<rdar://problem/105628579>