Add an EventRegions log channel
Created attachment 405854 [details] Patch
Created attachment 405858 [details] Patch
Comment on attachment 405858 [details] Patch Patch looks good.
Committed r265232: <https://trac.webkit.org/changeset/265232> All reviewed patches have been landed. Closing bug and clearing flags on attachment 405858 [details].
<rdar://problem/66499790>