<rdar://problem/70188497>
Created attachment 411082 [details] Patch
Note that there are important steps to take when updating ANGLE. See https://trac.webkit.org/wiki/UpdatingANGLE
Comment on attachment 411082 [details] Patch Clearing flags on attachment: 411082 Committed r268330: <https://trac.webkit.org/changeset/268330>
All reviewed patches have been landed. Closing bug.