Make css/css-scroll-snap/snap-to-visible-areas-both.html and css/css-scroll-snap/scroll-margin-visibility-check.html work with async scrolling
Pull request: https://github.com/WebKit/WebKit/pull/3588
Committed 253746@main (747d70361392): <https://commits.webkit.org/253746@main> Reviewed commits have been landed. Closing PR #3588 and removing active labels.
<rdar://problem/99105851>