Refactor: Change the interface HostResolver::DisableIPv6() to HostResolver::SetDefaultA...

chrome/browser/net/dns_global.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/net/dns_global.h"
 
 #include <map>
 #include <string>
 
 #include "base/singleton.h"
@@ skipping 462 matching lines @@
   dns_master->DiscardAllResults();
 }
 
 //------------------------------------------------------------------------------
 
 net::HostResolver* GetGlobalHostResolver() {
   // Called from UI thread.
   if (!global_host_resolver) {
     global_host_resolver = net::CreateSystemHostResolver();
 
-    if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableIPv6))
-      global_host_resolver->DisableIPv6(true);
+    if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableIPv6)) {
+      global_host_resolver->SetDefaultAddressFamily(
+          net::ADDRESS_FAMILY_IPV4);
+    }
   }
   return global_host_resolver;
 }
 
 //------------------------------------------------------------------------------
 // Functions to handle saving of hostnames from one session to the next, to
 // expedite startup times.
 
 void SaveHostNamesForNextStartup(PrefService* local_state) {
   if (!dns_prefetch_enabled)
@@ skipping 125 matching lines @@
   }
 }
 
 DnsPrefetcherInit::~DnsPrefetcherInit() {
     if (dns_master)
       FreeDnsPrefetchResources();
   }
 
 }  // namespace chrome_browser_net