Add support of serving SCT on the server side in QUIC, gated by QUIC_VERSION_30.

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 <stdint.h>
 #include <limits>
@@ skipping 329 matching lines @@
 enum QuicVersion {
   // Special case to indicate unknown/unsupported QUIC version.
   QUIC_VERSION_UNSUPPORTED = 0,
 
   QUIC_VERSION_25 = 25,  // SPDY/4 header keys, and removal of error_details
                          // from QuicRstStreamFrame
   QUIC_VERSION_26 = 26,  // In CHLO, send XLCT tag containing hash of leaf cert
   QUIC_VERSION_27 = 27,  // Sends a nonce in the SHLO.
   QUIC_VERSION_28 = 28,  // Receiver can refuse to create a requested stream.
   QUIC_VERSION_29 = 29,  // Server and client honor QUIC_STREAM_NO_ERROR.
+  QUIC_VERSION_30 = 30,  // Add server side support of cert transparency.
 };
 
 // This vector contains QUIC versions which we currently support.
 // This should be ordered such that the highest supported version is the first
 // element, with subsequent elements in descending order (versions can be
 // skipped as necessary).
 //
 // IMPORTANT: if you are adding to this list, follow the instructions at
 // http://sites/quic/adding-and-removing-versions
 static const QuicVersion kSupportedQuicVersions[] = {
-    QUIC_VERSION_29, QUIC_VERSION_28, QUIC_VERSION_27, QUIC_VERSION_26,
-    QUIC_VERSION_25};
+    QUIC_VERSION_30, QUIC_VERSION_29, QUIC_VERSION_28,
+    QUIC_VERSION_27, QUIC_VERSION_26, QUIC_VERSION_25};
 
 typedef std::vector<QuicVersion> QuicVersionVector;
 
 // Returns a vector of QUIC versions in kSupportedQuicVersions.
 NET_EXPORT_PRIVATE QuicVersionVector QuicSupportedVersions();
 
 // QuicTag is written to and read from the wire, but we prefer to use
 // the more readable QuicVersion at other levels.
 // Helper function which translates from a QuicVersion to a QuicTag. Returns 0
 // if QuicVersion is unsupported.
@@ skipping 866 matching lines @@
       : iov(iov), iov_count(iov_count), total_length(total_length) {}
 
   const struct iovec* iov;
   const int iov_count;
   const size_t total_length;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_