Deprecate FLAGS_quic_disable_pre_30. Remove QUIC versions [25-29].

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>
 
@@ skipping 341 matching lines @@
 // The available versions of QUIC. Guaranteed that the integer value of the enum
 // will match the version number.
 // When adding a new version to this enum you should add it to
 // kSupportedQuicVersions (if appropriate), and also add a new case to the
 // helper methods QuicVersionToQuicTag, QuicTagToQuicVersion, and
 // QuicVersionToString.
 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.
   QUIC_VERSION_31 = 31,  // Adds a hash of the client hello to crypto proof.
   QUIC_VERSION_32 = 32,  // FEC related fields are removed from wire format.
   QUIC_VERSION_33 = 33,  // Adds diversification nonces.
   QUIC_VERSION_34 = 34,  // Deprecates entropy, removes private flag from packet
                          // header, uses new ack and stop waiting wire format.
   QUIC_VERSION_35 = 35,  // Allows endpoints to independently set stream limit.
   QUIC_VERSION_36 = 36,  // Add support to force HOL blocking.
 };
 
 // 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_36, QUIC_VERSION_35, QUIC_VERSION_34, QUIC_VERSION_33,
-    QUIC_VERSION_32, QUIC_VERSION_31, QUIC_VERSION_30, QUIC_VERSION_29,
-    QUIC_VERSION_28, QUIC_VERSION_27, QUIC_VERSION_26, QUIC_VERSION_25};
+    QUIC_VERSION_32, QUIC_VERSION_31, QUIC_VERSION_30};
 
 typedef std::vector<QuicVersion> QuicVersionVector;
 
 // Returns a vector of QUIC versions in kSupportedQuicVersions.
 NET_EXPORT_PRIVATE QuicVersionVector QuicSupportedVersions();
 
 // Returns a vector of QUIC versions from |versions| which exclude any versions
 // which are disabled by flags.
 NET_EXPORT_PRIVATE QuicVersionVector
 FilterSupportedVersions(QuicVersionVector versions);
@@ skipping 1105 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_