Add a required syscall to the WebContent sandbox on iOS and macOS.
rdar://problem/61310019
Created attachment 395567 [details] Patch
Comment on attachment 395567 [details] Patch r=me
Comment on attachment 395567 [details] Patch Thanks for reviewing!
Committed r259573: <https://trac.webkit.org/changeset/259573> All reviewed patches have been landed. Closing bug and clearing flags on attachment 395567 [details].