IPC::StreamServerConnectionBase has only one subclass, it should be removed
Created attachment 456382 [details] Patch
Created attachment 456384 [details] Patch
Committed r292280 (249178@main): <https://commits.webkit.org/249178@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 456384 [details].
<rdar://problem/91227322>