Resync web-platform-tests/dom tests from upstream.
Created attachment 413171 [details] Patch
Comment on attachment 413171 [details] Patch rs=me once all the bots pass.
Created attachment 413204 [details] Patch
Comment on attachment 413204 [details] Patch Clearing flags on attachment: 413204 Committed r269400: <https://trac.webkit.org/changeset/269400>
All reviewed patches have been landed. Closing bug.
<rdar://problem/71055067>