-webkit-border-fit was added in r19862 but is not a standard property. We should remove it or hide it from the web.
https://www.chromestatus.com/metrics/css/popularity#webkit-border-fit
<rdar://problem/82677919>
Created attachment 443858 [details] Patch
Created attachment 443859 [details] Patch
Created attachment 443874 [details] Patch
Committed r285615 (244117@main): <https://commits.webkit.org/244117@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 443874 [details].