StreamClientConnection should have waitForAndDispatchImmediately
Created attachment 456263 [details] Patch
Created attachment 456323 [details] For landing
Created attachment 456329 [details] For landing
Created attachment 456333 [details] For landing
Committed r292282 (249180@main): <https://commits.webkit.org/249180@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 456333 [details].
<rdar://problem/91228127>