When a stream is created for a QUIC session to a server which has been

net/quic/chromium/quic_chromium_client_session.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/chromium/quic_chromium_client_session.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/location.h"
@@ skipping 710 matching lines @@
     return ERR_CONNECTION_CLOSED;
 
   if (IsCryptoHandshakeConfirmed())
     return OK;
 
   waiting_for_confirmation_callbacks_.push_back(callback);
   return ERR_IO_PENDING;
 }
 
 int QuicChromiumClientSession::TryCreateStream(StreamRequest* request) {
+  if (stream_factory_->IsQuicBroken(this)) {
+    DVLOG(1) << "QUIC broken.";
+    return ERR_QUIC_PROTOCOL_ERROR;
+  }
+
   if (goaway_received()) {
     DVLOG(1) << "Going away.";
     return ERR_CONNECTION_CLOSED;
   }
 
   if (!connection()->connected()) {
     DVLOG(1) << "Already closed.";
     return ERR_CONNECTION_CLOSED;
   }
 
@@ skipping 1017 matching lines @@
 }
 
 size_t QuicChromiumClientSession::EstimateMemoryUsage() const {
   // TODO(xunjieli): Estimate |crypto_stream_|, QuicSpdySession's
   // QuicHeaderList, QuicSession's QuiCWriteBlockedList, open streams and
   // unacked packet map.
   return base::trace_event::EstimateMemoryUsage(packet_readers_);
 }
 
 }  // namespace net