rdar://117556294
<rdar://problem/117718486>
Pull request: https://github.com/apple/WebKit/pull/901
Pull request: https://github.com/WebKit/WebKit/pull/19860
Committed 270084@main (ae0b70efbe6b): <https://commits.webkit.org/270084@main> Reviewed commits have been landed. Closing PR #19860 and removing active labels.