Block unused system calls in the GPU process on macOS.
Pull request: https://github.com/WebKit/WebKit/pull/1060
<rdar://84826074>
Committed r294898 (251021@main): <https://commits.webkit.org/251021@main> Reviewed commits have been landed. Closing PR #1060 and removing active labels.
Re-opened since this is blocked by bug 241008
Pull request: https://github.com/WebKit/WebKit/pull/1090
Committed r294969 (251073@main): <https://commits.webkit.org/251073@main> Reviewed commits have been landed. Closing PR #1090 and removing active labels.