Allow QUIC clients to accept STK/SCFG updates on an existing connection.

net/quic/quic_crypto_client_stream.h

 // 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.
 
 #ifndef NET_QUIC_QUIC_CRYPTO_CLIENT_STREAM_H_
 #define NET_QUIC_QUIC_CRYPTO_CLIENT_STREAM_H_
 
 #include <string>
 
 #include "net/quic/crypto/channel_id.h"
@@ skipping 86 matching lines @@
     STATE_INITIALIZE,
     STATE_SEND_CHLO,
     STATE_RECV_REJ,
     STATE_VERIFY_PROOF,
     STATE_VERIFY_PROOF_COMPLETE,
     STATE_GET_CHANNEL_ID,
     STATE_GET_CHANNEL_ID_COMPLETE,
     STATE_RECV_SHLO,
   };
 
+  // Handles new server config and optional source-address token provided by the
+  // server during a connection.
+  void HandleServerConfigUpdateMessage(const CryptoHandshakeMessage* in);

[wtc, 2014/07/16 17:03:06]

I seem to remember I also suggested changing this input parameter to a const
ref. If Robbie didn't make this change, you can do it.

The DoHandshakeLoop function below must declare its input as a pointer because
we sometimes need to pass NULL to DoHandshakeLoop.

[ramant (doing other things), 2014/07/16 19:43:21]

Done.

+
   // DoHandshakeLoop performs a step of the handshake state machine. Note that
   // |in| may be NULL if the call did not result from a received message.
   void DoHandshakeLoop(const CryptoHandshakeMessage* in);
 
   // Called to set the proof of |cached| valid.  Also invokes the session's
   // OnProofValid() method.
   void SetCachedProofValid(QuicCryptoClientConfig::CachedState* cached);
 
   // Returns true if the server crypto config in |cached| requires a ChannelID
   // and the client config settings also allow sending a ChannelID.
@@ skipping 40 matching lines @@
   bool verify_ok_;
   string verify_error_details_;
   scoped_ptr<ProofVerifyDetails> verify_details_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoClientStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CRYPTO_CLIENT_STREAM_H_