Implements migration of a QUIC connection to a different destination address if specified by the se…

net/quic/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/quic_chromium_client_session.h"
 
 #include <utility>
 
 #include "base/callback_helpers.h"
 #include "base/location.h"
@@ skipping 719 matching lines @@
     StreamRequest* request = stream_requests_.front();
     stream_requests_.pop_front();
     request->OnRequestCompleteSuccess(CreateOutgoingReliableStreamImpl());
   }
 
   if (GetNumOpenOutgoingStreams() == 0 && stream_factory_) {
     stream_factory_->OnIdleSession(this);
   }
 }
 
+void QuicChromiumClientSession::OnConfigNegotiated() {
+  QuicClientSessionBase::OnConfigNegotiated();
+  if (stream_factory_ && config()->HasReceivedAlternateServerAddress()) {
+    // Server has sent an alternate address to connect to.
+    stream_factory_->MigrateSessionToNewSocket(
+        this, config()->ReceivedAlternateServerAddress(),
+        NetworkChangeNotifier::kInvalidNetworkHandle, net_log_, nullptr);
+  }
+}
+
 void QuicChromiumClientSession::OnCryptoHandshakeEvent(
     CryptoHandshakeEvent event) {
   if (stream_factory_ && event == HANDSHAKE_CONFIRMED &&
       (stream_factory_->OnHandshakeConfirmed(
           this, logger_->ReceivedPacketLossRate()))) {
     return;
   }
 
   if (!callback_.is_null() &&
       (!require_confirmation_ || event == HANDSHAKE_CONFIRMED ||
@@ skipping 477 matching lines @@
 }
 
 void QuicChromiumClientSession::DeletePromised(
     QuicClientPromisedInfo* promised) {
   if (IsOpenStream(promised->id()))
     streams_pushed_and_claimed_count_++;
   QuicClientSessionBase::DeletePromised(promised);
 }
 
 }  // namespace net