Resync web-platform-tests/html/browsers from upstream.
Created attachment 403383 [details] Patch
Comment on attachment 403383 [details] Patch rs=me
Committed r263856: <https://trac.webkit.org/changeset/263856> All reviewed patches have been landed. Closing bug and clearing flags on attachment 403383 [details].
<rdar://problem/65046793>