https://w3c.github.io/trusted-types/dist/spec/#enforcement-in-timer-functions
<rdar://problem/121592385>
This is slightly more tricky than it might seem because setTimeout in webkit has a different IDL definition that expected.
Pull request: https://github.com/WebKit/WebKit/pull/25723
Committed 276934@main (e3c49184f6ef): <https://commits.webkit.org/276934@main> Reviewed commits have been landed. Closing PR #25723 and removing active labels.