Refactor QuicClientSession so that it owns the underlying socket

net/quic/quic_stream_factory.cc

Index: net/quic/quic_stream_factory.cc
diff --git a/net/quic/quic_stream_factory.cc b/net/quic/quic_stream_factory.cc
index c5a5026a6d42e035094ce3bde18e2ba46cf8dcb0..1cb3ff367b805e83c36999e53d6a3668e2ef3efd 100644
--- a/net/quic/quic_stream_factory.cc
+++ b/net/quic/quic_stream_factory.cc
@@ -374,8 +374,8 @@ QuicClientSession* QuicStreamFactory::CreateSession(
       clock_.get(), random_generator_, socket);
 
   QuicConnection* connection = new QuicConnection(guid, addr, helper, false);
-  QuicClientSession* session = new QuicClientSession(connection, helper, this,
-                                                     host, net_log.net_log());
+  QuicClientSession* session =
+      new QuicClientSession(connection, socket, this, host, net_log.net_log());
   all_sessions_.insert(session);  // owning pointer
   return session;
 }