Remove interface probing for IPv6 support from HostResolverImpl

chrome/browser/ui/webui/net_internals/net_internals_ui.cc

Index: chrome/browser/ui/webui/net_internals/net_internals_ui.cc
diff --git a/chrome/browser/ui/webui/net_internals/net_internals_ui.cc b/chrome/browser/ui/webui/net_internals/net_internals_ui.cc
index 9adb33feb67103c3908942766312ab89a4288e14..da52ae56323abd941839c9e71a95c9cccbb62c2b 100644
--- a/chrome/browser/ui/webui/net_internals/net_internals_ui.cc
+++ b/chrome/browser/ui/webui/net_internals/net_internals_ui.cc
@@ -556,7 +556,6 @@ class NetInternalsMessageHandler::IOThreadImpl
   void OnGetBadProxies(const ListValue* list);
   void OnClearBadProxies(const ListValue* list);
   void OnGetHostResolverInfo(const ListValue* list);
-  void OnRunIPv6Probe(const ListValue* list);
   void OnClearHostResolverCache(const ListValue* list);
   void OnEnableIPv6(const ListValue* list);
   void OnStartConnectionTests(const ListValue* list);
@@ -721,10 +720,6 @@ void NetInternalsMessageHandler::RegisterMessages() {
       base::Bind(&IOThreadImpl::CallbackHelper,
                  &IOThreadImpl::OnGetHostResolverInfo, proxy_));
   web_ui()->RegisterMessageCallback(
-      "onRunIPv6Probe",
-      base::Bind(&IOThreadImpl::CallbackHelper,
-                 &IOThreadImpl::OnRunIPv6Probe, proxy_));
-  web_ui()->RegisterMessageCallback(
       "clearHostResolverCache",
       base::Bind(&IOThreadImpl::CallbackHelper,
                  &IOThreadImpl::OnClearHostResolverCache, proxy_));
@@ -1207,17 +1202,6 @@ void NetInternalsMessageHandler::IOThreadImpl::OnGetHostResolverInfo(
   SendJavascriptCommand("receivedHostResolverInfo", dict);
 }
 
-void NetInternalsMessageHandler::IOThreadImpl::OnRunIPv6Probe(
-    const ListValue* list) {
-  DCHECK(!list);
-  net::HostResolver* resolver = GetMainContext()->host_resolver();
-
-  // Have to set the default address family manually before calling
-  // ProbeIPv6Support.
-  resolver->SetDefaultAddressFamily(net::ADDRESS_FAMILY_UNSPECIFIED);
-  resolver->ProbeIPv6Support();
-}
-
 void NetInternalsMessageHandler::IOThreadImpl::OnClearHostResolverCache(
     const ListValue* list) {
   DCHECK(!list);