Based on telemetry, remove access to mach-register in the GPU process' sandbox on iOS.
<rdar://problem/84763289>
Created attachment 442716 [details] Patch
Comment on attachment 442716 [details] Patch Thanks for reviewing!
Committed r285581 (244089@main): <https://commits.webkit.org/244089@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 442716 [details].