App launch time has slightly regressed since 255828@main due to some extra work on the main thread during the WebProcessPool initialization.
<rdar://105236601>
Pull request: https://github.com/WebKit/WebKit/pull/10730
Committed 260910@main (a061abebfe51): <https://commits.webkit.org/260910@main> Reviewed commits have been landed. Closing PR #10730 and removing active labels.