Refactor pooling logic into a helper method

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 6112e1eb492ebe73840f5ec903eda59266296eb1..9808cac4259b660c28de83be2cf3efdbf861713f 100644
--- a/net/quic/quic_client_session.h
+++ b/net/quic/quic_client_session.h
@@ -35,6 +35,7 @@ class QuicServerId;
 class QuicServerInfo;
 class QuicStreamFactory;
 class SSLInfo;
+class TransportSecurityState;
 
 namespace test {
 class QuicClientSessionPeer;
@@ -95,6 +96,7 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicClientSessionBase {
                     scoped_ptr<QuicDefaultPacketWriter> writer,
                     QuicStreamFactory* stream_factory,
                     QuicCryptoClientStreamFactory* crypto_client_stream_factory,
+                    TransportSecurityState* transport_security_state,
                     scoped_ptr<QuicServerInfo> server_info,
                     const QuicServerId& server_id,
                     const QuicConfig& config,
@@ -226,6 +228,7 @@ class NET_EXPORT_PRIVATE QuicClientSession : public QuicClientSessionBase {
   scoped_ptr<DatagramClientSocket> socket_;
   scoped_ptr<QuicDefaultPacketWriter> writer_;
   scoped_refptr<IOBufferWithSize> read_buffer_;
+  TransportSecurityState* transport_security_state_;
   scoped_ptr<QuicServerInfo> server_info_;
   scoped_ptr<CertVerifyResult> cert_verify_result_;
   std::string pinning_failure_log_;