Resync all remaining web-platform-tests/html tests from upstream.
Created attachment 403727 [details] Patch
Created attachment 403732 [details] Patch
Created attachment 403740 [details] Patch
Comment on attachment 403740 [details] Patch rs=me
Created attachment 403791 [details] Patch
Committed r264117: <https://trac.webkit.org/changeset/264117> All reviewed patches have been landed. Closing bug and clearing flags on attachment 403791 [details].
<rdar://problem/65231908>