Allow syscall used on WebContent process launch on iOS.
<rdar://86914492>
Created attachment 448429 [details] Patch
Comment on attachment 448429 [details] Patch r=me
Comment on attachment 448429 [details] Patch Thanks for reviewing!
Committed r287664 (245761@main): <https://commits.webkit.org/245761@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 448429 [details].