QUIC - undo the chromium specific changes from the following CL which

net/quic/quic_client_session.h

Index: net/quic/quic_client_session.h
diff --git a/net/quic/quic_client_session.h b/net/quic/quic_client_session.h
index eecebc645d2bdf06f1a4b583a5a5458c345ec177..b46c0ab6d8185474ba98fd8d7f8a5e4c406d53e6 100644
--- a/net/quic/quic_client_session.h
+++ b/net/quic/quic_client_session.h
@@ -94,17 +94,15 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicClientSessionBase {
                     scoped_ptr<DatagramClientSocket> socket,
                     scoped_ptr<QuicDefaultPacketWriter> writer,
                     QuicStreamFactory* stream_factory,
+                    QuicCryptoClientStreamFactory* crypto_client_stream_factory,
                     scoped_ptr<QuicServerInfo> server_info,
+                    const QuicServerId& server_id,
                     const QuicConfig& config,
+                    QuicCryptoClientConfig* crypto_config,
                     base::TaskRunner* task_runner,
                     NetLog* net_log);
   virtual ~QuicClientSession();
 
-  void InitializeSession(
-      const QuicServerId& server_id,
-      QuicCryptoClientConfig* config,
-      QuicCryptoClientStreamFactory* crypto_client_stream_factory);
-
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
@@ -221,7 +219,7 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicClientSessionBase {
 
   void OnConnectTimeout();
 
-  scoped_ptr<HostPortPair> server_host_port_;
+  const HostPortPair server_host_port_;
   bool require_confirmation_;
   scoped_ptr<QuicCryptoClientStream> crypto_stream_;
   QuicStreamFactory* stream_factory_;