The only behavior change from this is that common video decoders will not be permitted in the WebContent process.
Pull request: https://github.com/WebKit/WebKit/pull/1508
<rdar://problem/95615773>
Committed r295688 (251693@main): <https://commits.webkit.org/251693@main> Reviewed commits have been landed. Closing PR #1508 and removing active labels.