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

net/quic/quic_crypto_client_stream.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/quic_crypto_client_stream.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/metrics/histogram_macros.h"
@@ skipping 292 matching lines @@
   }
   num_client_hellos_++;
 
   CryptoHandshakeMessage out;
   DCHECK(session() != nullptr);
   DCHECK(session()->config() != nullptr);
   // Send all the options, regardless of whether we're sending an
   // inchoate or subsequent hello.
   session()->config()->ToHandshakeMessage(&out);
 
-  // This call and function should be removed after removing QUIC_VERSION_25.
+  // This call and function should be removed when
+  // FLAGS_quic_deprecate_kfixd is removed.
   AppendFixed(&out);
 
   // Send a local timestamp to the server.
   out.SetValue(kCTIM,
                session()->connection()->clock()->WallNow().ToUNIXSeconds());
 
   if (!cached->IsComplete(session()->connection()->clock()->WallNow())) {
     crypto_config_->FillInchoateClientHello(
         server_id_, session()->connection()->supported_versions().front(),
         cached, session()->connection()->random_generator(),
@@ skipping 361 matching lines @@
   }
   for (size_t i = 0; i < num_their_proof_demands; i++) {
     if (their_proof_demands[i] == kCHID) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace net