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

net/quic/quic_crypto_client_stream.h

Index: net/quic/quic_crypto_client_stream.h
diff --git a/net/quic/quic_crypto_client_stream.h b/net/quic/quic_crypto_client_stream.h
index edb0c359453c41f6aa121b5aa96a557a47df521f..7250547f3878b57bb822c397821e9b151969fa68 100644
--- a/net/quic/quic_crypto_client_stream.h
+++ b/net/quic/quic_crypto_client_stream.h
@@ -104,6 +104,10 @@ class NET_EXPORT_PRIVATE QuicCryptoClientStream : public QuicCryptoStream {
     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);