Early connection migration in QUIC.

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 776 matching lines @@
   CloseAllObservers(ERR_UNEXPECTED);
   NotifyFactoryOfSessionClosedLater();
 }
 
 void QuicChromiumClientSession::OnSuccessfulVersionNegotiation(
     const QuicVersion& version) {
   logger_->OnSuccessfulVersionNegotiation(version);
   QuicSpdySession::OnSuccessfulVersionNegotiation(version);
 }
 
+void QuicChromiumClientSession::OnPathDegrading() {
+  stream_factory_->MaybeMigrateSessionEarly(this);
+}
+
 void QuicChromiumClientSession::OnProofValid(
     const QuicCryptoClientConfig::CachedState& cached) {
   DCHECK(cached.proof_valid());
 
   if (!server_info_) {
     return;
   }
 
   QuicServerInfo::State* state = server_info_->mutable_state();
 
@@ skipping 212 matching lines @@
 }
 
 const DatagramClientSocket* QuicChromiumClientSession::GetDefaultSocket()
     const {
   DCHECK(sockets_.back().get() != nullptr);
   // The most recently added socket is the currently active one.
   return sockets_.back().get();
 }
 
 }  // namespace net