These can never return nullptr, so we should use Ref.
Created attachment 451442 [details] Patch
Comment on attachment 451442 [details] Patch LGTM! EWS is green too.
Committed r289588 (247101@main): <https://commits.webkit.org/247101@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 451442 [details].
<rdar://problem/88782405>