Remote WebGPU assers while subobjects call StreamServerConnection::startReceivingMessages
<rdar://problem/101622326>
Pull request: https://github.com/WebKit/WebKit/pull/5852
Committed 257013@main (b1f94e7ba1cc): <https://commits.webkit.org/257013@main> Reviewed commits have been landed. Closing PR #5852 and removing active labels.