Land Recent QUIC Changes.

net/quic/crypto/crypto_protocol.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_CRYPTO_CRYPTO_PROTOCOL_H_
 #define NET_QUIC_CRYPTO_CRYPTO_PROTOCOL_H_
 
 #include <string>
 
 #include "net/base/net_export.h"
@@ skipping 36 matching lines @@
 const QuicTag kPACE = TAG('P', 'A', 'C', 'E');   // Paced TCP cubic
 const QuicTag kINAR = TAG('I', 'N', 'A', 'R');   // Inter arrival
 
 // Congestion control options
 const QuicTag kTBBR = TAG('T', 'B', 'B', 'R');   // Reduced Buffer Bloat TCP
 
 // Loss detection algorithm types
 const QuicTag kNACK = TAG('N', 'A', 'C', 'K');   // TCP style nack counting
 const QuicTag kTIME = TAG('T', 'I', 'M', 'E');   // Time based
 
+// FEC options
+const QuicTag kFHDR = TAG('F', 'H', 'D', 'R');   // FEC protect headers
+
 // Proof types (i.e. certificate types)
 // NOTE: although it would be silly to do so, specifying both kX509 and kX59R
 // is allowed and is equivalent to specifying only kX509.
 const QuicTag kX509 = TAG('X', '5', '0', '9');   // X.509 certificate, all key
                                                  // types
 const QuicTag kX59R = TAG('X', '5', '9', 'R');   // X.509 certificate, RSA keys
                                                  // only
 const QuicTag kCHID = TAG('C', 'H', 'I', 'D');   // Channel ID.
 
 // Client hello tags
@@ skipping 90 matching lines @@
 // amplification factor of any mirror DoS attack.
 //
 // A client may pad an inchoate client hello to a size larger than
 // kClientHelloMinimumSize to make it more likely to receive a complete
 // rejection message.
 const size_t kClientHelloMinimumSize = 1024;
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_CRYPTO_PROTOCOL_H_