Land Recent QUIC Changes.

net/quic/quic_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_QUIC_PROTOCOL_H_
 #define NET_QUIC_QUIC_PROTOCOL_H_
 
 #include <stddef.h>
 #include <limits>
 #include <map>
@@ skipping 300 matching lines @@
 // representation of the name of the tag.  For example
 // the client hello tag (CHLO) will be written as the
 // following 4 bytes: 'C' 'H' 'L' 'O'.  Since it is
 // stored in memory as a little endian uint32, we need
 // to reverse the order of the bytes.
 
 // MakeQuicTag returns a value given the four bytes. For example:
 //   MakeQuicTag('C', 'H', 'L', 'O');
 NET_EXPORT_PRIVATE QuicTag MakeQuicTag(char a, char b, char c, char d);
 
+// Returns true if the tag vector contains the specified tag.
+bool ContainsQuicTag(QuicTagVector tag_vector, QuicTag tag);
+
 // Size in bytes of the data or fec packet header.
 NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(const QuicPacketHeader& header);
 
 NET_EXPORT_PRIVATE size_t GetPacketHeaderSize(
     QuicConnectionIdLength connection_id_length,
     bool include_version,
     QuicSequenceNumberLength sequence_number_length,
     InFecGroup is_in_fec_group);
 
 // Index of the first byte in a QUIC packet of FEC protected data.
@@ skipping 745 matching lines @@
   WriteStatus status;
   union {
     int bytes_written;  // only valid when status is OK
     int error_code;  // only valid when status is ERROR
   };
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_