Remove interface probing for IPv6 support from HostResolverImpl

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/metrics/field_trial.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
@@ skipping 91 matching lines @@
       priority_(MEDIUM) {
 }
 
 HostResolver::~HostResolver() {
 }
 
 AddressFamily HostResolver::GetDefaultAddressFamily() const {
   return ADDRESS_FAMILY_UNSPECIFIED;
 }
 
-void HostResolver::ProbeIPv6Support() {
-}
-
 void HostResolver::SetDnsClientEnabled(bool enabled) {
 }
 
 HostCache* HostResolver::GetHostCache() {
   return NULL;
 }
 
 base::Value* HostResolver::GetDnsConfigAsValue() const {
   return NULL;
 }
@@ skipping 14 matching lines @@
 // static
 scoped_ptr<HostResolver>
 HostResolver::CreateDefaultResolver(NetLog* net_log) {
   return CreateSystemResolver(Options(), net_log);
 }
 
 HostResolver::HostResolver() {
 }
 
 }  // namespace net