Change Cronet's "disable_ipv6" to "disable_ipv6_on_wifi"

net/dns/host_resolver.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/dns/host_resolver.h"
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 122 matching lines @@
     std::unique_ptr<const base::Value> old_data) {}
 
 void HostResolver::SetDefaultAddressFamily(AddressFamily address_family) {
   NOTREACHED();
 }
 
 AddressFamily HostResolver::GetDefaultAddressFamily() const {
   return ADDRESS_FAMILY_UNSPECIFIED;
 }
 
+void HostResolver::SetNoIPv6OnWifi() {
+  NOTREACHED();
+}
+
+bool HostResolver::GetNoIPv6OnWifi() {
+  return false;
+}
+
 // static
 std::unique_ptr<HostResolver> HostResolver::CreateSystemResolver(
     const Options& options,
     NetLog* net_log) {
   return std::unique_ptr<HostResolver>(
       CreateSystemResolverImpl(options, net_log).release());
 }
 
 // static
 std::unique_ptr<HostResolverImpl> HostResolver::CreateSystemResolverImpl(
@@ skipping 10 matching lines @@
 
 // static
 std::unique_ptr<HostResolverImpl> HostResolver::CreateDefaultResolverImpl(
     NetLog* net_log) {
   return CreateSystemResolverImpl(Options(), net_log);
 }
 
 HostResolver::HostResolver() {}
 
 }  // namespace net