deprecate -FLAGS_quic_reloadable_flag_quic_disable_version_34 and remove support for QUIC v34.

net/quic/core/quic_versions.cc

 // 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.
 
 #include "net/quic/core/quic_versions.h"
 
 #include "net/quic/core/quic_error_codes.h"
 #include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_tag.h"
 #include "net/quic/core/quic_types.h"
@@ skipping 34 matching lines @@
       }
     } else if (version == QUIC_VERSION_37) {
       if (FLAGS_quic_reloadable_flag_quic_enable_version_37 &&
           FLAGS_quic_reloadable_flag_quic_enable_version_36_v3) {
         filtered_versions.push_back(version);
       }
     } else if (version == QUIC_VERSION_36) {
       if (FLAGS_quic_reloadable_flag_quic_enable_version_36_v3) {
         filtered_versions.push_back(version);
       }
-    } else if (version == QUIC_VERSION_34) {
-      if (!FLAGS_quic_reloadable_flag_quic_disable_version_34) {
-        filtered_versions.push_back(version);
-      }
     } else {
       filtered_versions.push_back(version);
     }
   }
   return filtered_versions;
 }
 
 QuicVersionVector VersionOfIndex(const QuicVersionVector& versions, int index) {
   QuicVersionVector version;
   int version_count = versions.size();
   if (index >= 0 && index < version_count) {
     version.push_back(versions[index]);
   } else {
     version.push_back(QUIC_VERSION_UNSUPPORTED);
   }
   return version;
 }
 
 QuicTag QuicVersionToQuicTag(const QuicVersion version) {
   switch (version) {
-    case QUIC_VERSION_34:
-      return MakeQuicTag('Q', '0', '3', '4');
     case QUIC_VERSION_35:
       return MakeQuicTag('Q', '0', '3', '5');
     case QUIC_VERSION_36:
       return MakeQuicTag('Q', '0', '3', '6');
     case QUIC_VERSION_37:
       return MakeQuicTag('Q', '0', '3', '7');
     case QUIC_VERSION_38:
       return MakeQuicTag('Q', '0', '3', '8');
     case QUIC_VERSION_39:
       return MakeQuicTag('Q', '0', '3', '9');
@@ skipping 16 matching lines @@
                   << QuicTagToString(version_tag);
   return QUIC_VERSION_UNSUPPORTED;
 }
 
 #define RETURN_STRING_LITERAL(x) \
   case x:                        \
     return #x
 
 string QuicVersionToString(const QuicVersion version) {
   switch (version) {
-    RETURN_STRING_LITERAL(QUIC_VERSION_34);
     RETURN_STRING_LITERAL(QUIC_VERSION_35);
     RETURN_STRING_LITERAL(QUIC_VERSION_36);
     RETURN_STRING_LITERAL(QUIC_VERSION_37);
     RETURN_STRING_LITERAL(QUIC_VERSION_38);
     RETURN_STRING_LITERAL(QUIC_VERSION_39);
     default:
       return "QUIC_VERSION_UNSUPPORTED";
   }
 }
 
 string QuicVersionVectorToString(const QuicVersionVector& versions) {
   string result = "";
   for (size_t i = 0; i < versions.size(); ++i) {
     if (i != 0) {
       result.append(",");
     }
     result.append(QuicVersionToString(versions[i]));
   }
   return result;
 }
 
 }  // namespace net