Bug 1667351 - Process neqo events immediately after a cert authentication is done. r=necko-reviewers,valentin

Currently we call ResumeSend() which will not process neqo events. It will only produce new packets. We are relying on other events, like timeout or a receive packet to trigger this.

Differential Revision: https://phabricator.services.mozilla.com/D92113

netwerk/protocol/http/Http3Session.cpp

@@ -1582,10 +1582,13 @@ void Http3Session::Authenticated(int32_t aError) {
            static_cast<uint32_t>(mError), this));
     }
     mHttp3Connection->PeerAuthenticated(aError);
-  }
 
-  if (mConnection) {
-    Unused << mConnection->ResumeSend();
+    // Call OnQuicTimeoutExpired to properly process neqo events and outputs.
+    // We call OnQuicTimeoutExpired instead of ProcessOutputAndEvents, because
+    // HttpConnectionUDP must close this session in case of an error.
+    NS_DispatchToCurrentThread(NewRunnableMethod(
+        "net::HttpConnectionUDP::OnQuicTimeoutExpired", mSegmentReaderWriter,
+        &HttpConnectionUDP::OnQuicTimeoutExpired));
   }
 }