Along with sending the SCUP message, this CL includes small fixes which

net/quic/quic_crypto_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_STREAM_H_
 #define NET_QUIC_QUIC_CRYPTO_STREAM_H_
 
 #include "base/basictypes.h"
 #include "net/quic/crypto/crypto_framer.h"
 #include "net/quic/crypto/crypto_utils.h"
@@ skipping 27 matching lines @@
   virtual void OnHandshakeMessage(
       const CryptoHandshakeMessage& message) OVERRIDE;
 
   // ReliableQuicStream implementation
   virtual uint32 ProcessRawData(const char* data, uint32 data_len) OVERRIDE;
   virtual QuicPriority EffectivePriority() const OVERRIDE;
 
   // Sends |message| to the peer.
   // TODO(wtc): return a success/failure status.
   void SendHandshakeMessage(const CryptoHandshakeMessage& message);
+  // As above, but registers |delegate| for notification when |message| has been
+  // ACKed by the peer.
+  void SendHandshakeMessage(const CryptoHandshakeMessage& message,
+                            QuicAckNotifier::DelegateInterface* delegate);
 
   // Performs key extraction to derive a new secret of |result_len| bytes
   // dependent on |label|, |context|, and the stream's negotiated subkey secret.
   // Returns false if the handshake has not been confirmed or the parameters are
   // invalid (e.g. |label| contains null bytes); returns true on success.
   bool ExportKeyingMaterial(base::StringPiece label,
                             base::StringPiece context,
                             size_t result_len,
                             std::string* result) const;
 
@@ skipping 12 matching lines @@
   CryptoFramer crypto_framer_;
 
   bool is_server_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicCryptoStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CRYPTO_STREAM_H_