Removing some unused WebPushD message types broke bincompat with the webpushd protocol. Restore them for now.
<rdar://problem/114363467>
Pull request: https://github.com/WebKit/WebKit/pull/17004
Committed 267225@main (e3a806233691): <https://commits.webkit.org/267225@main> Reviewed commits have been landed. Closing PR #17004 and removing active labels.