Rename FLAGS_quic_enable_version_39 to FLAGS_quic_reloadable_flag_quic_enable_version_39.

net/quic/core/quic_version_manager.cc

 // Copyright (c) 2016 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_version_manager.h"
 
 #include "net/quic/core/quic_versions.h"
 #include "net/quic/platform/api/quic_flags.h"
 
 namespace net {
 
 QuicVersionManager::QuicVersionManager(QuicVersionVector supported_versions)
-    : enable_version_39_(FLAGS_quic_enable_version_39),
+    : enable_version_39_(FLAGS_quic_reloadable_flag_quic_enable_version_39),
       enable_version_38_(FLAGS_quic_reloadable_flag_quic_enable_version_38),
       allowed_supported_versions_(supported_versions),
       filtered_supported_versions_(
           FilterSupportedVersions(supported_versions)) {}
 
 QuicVersionManager::~QuicVersionManager() {}
 
 const QuicVersionVector& QuicVersionManager::GetSupportedVersions() {
   MaybeRefilterSupportedVersions();
   return filtered_supported_versions_;
 }
 
 void QuicVersionManager::MaybeRefilterSupportedVersions() {
-  if (enable_version_39_ != FLAGS_quic_enable_version_39 ||
+  if (enable_version_39_ != FLAGS_quic_reloadable_flag_quic_enable_version_39 ||
       enable_version_38_ != FLAGS_quic_reloadable_flag_quic_enable_version_38) {
-    enable_version_39_ = FLAGS_quic_enable_version_39;
+    enable_version_39_ = FLAGS_quic_reloadable_flag_quic_enable_version_39;
     enable_version_38_ = FLAGS_quic_reloadable_flag_quic_enable_version_38;
     RefilterSupportedVersions();
   }
 }
 
 void QuicVersionManager::RefilterSupportedVersions() {
   filtered_supported_versions_ =
       FilterSupportedVersions(allowed_supported_versions_);
 }
 
 }  // namespace net