Need to implement IPC::StreamMessageReceiver::sendWithAsyncReply() to allow for async IPC with a reply on the stream connection.
<rdar://problem/88636456>
Pull request: https://github.com/WebKit/WebKit/pull/5730
Pull request: https://github.com/WebKit/WebKit/pull/7041
Committed 257735@main (19a30ab35aa9): <https://commits.webkit.org/257735@main> Reviewed commits have been landed. Closing PR #7041 and removing active labels.