Particularly to import changes in pointerevents/pointerevent_after_target_removed.html
<rdar://problem/117710993>
Pull request: https://github.com/WebKit/WebKit/pull/19764
Committed 270018@main (d686f6e2d8ea): <https://commits.webkit.org/270018@main> Reviewed commits have been landed. Closing PR #19764 and removing active labels.