WebCore/Sources.txt: Remove #if ENABLE_USER_MESSAGE_HANDLERS
Created attachment 403494 [details] Patch
Created attachment 403496 [details] Patch
Comment on attachment 403496 [details] Patch Little to early to set the commit-queue flag, but looks good.
Committed r263918: <https://trac.webkit.org/changeset/263918>
<rdar://problem/65085155>