Block unused resources in v3 sandbox in the WebContent process on macOS and iOS.
<rdar://problem/106827256>
Pull request: https://github.com/WebKit/WebKit/pull/11826
Committed 262058@main (7bd957f101e9): <https://commits.webkit.org/262058@main> Reviewed commits have been landed. Closing PR #11826 and removing active labels.