Revert 262487@main, since it caused a PIP regression.
rdar://107581037
Pull request: https://github.com/WebKit/WebKit/pull/12364
Committed 262577@main (ab1679956f87): <https://commits.webkit.org/262577@main> Reviewed commits have been landed. Closing PR #12364 and removing active labels.
Re-opened since this is blocked by bug 254995