diff -r 000000000000 -r 6474c204b198 netwerk/base/src/nsNativeConnectionHelper.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/base/src/nsNativeConnectionHelper.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsNativeConnectionHelper.h"
+#include "nsAutodialWin.h"
+#include "nsIOService.h"
+
+//-----------------------------------------------------------------------------
+// API typically invoked on the socket transport thread
+//-----------------------------------------------------------------------------
+
+bool
+nsNativeConnectionHelper::OnConnectionFailed(const char16_t* hostName)
+{
+    if (gIOService->IsLinkUp())
+        return false;
+
+    nsAutodial autodial;
+    if (autodial.ShouldDialOnNetworkError())
+        return NS_SUCCEEDED(autodial.DialDefault(hostName));
+
+    return false;
+}
+
+bool
+nsNativeConnectionHelper::IsAutodialEnabled()
+{
+    nsAutodial autodial;
+    return autodial.Init() == NS_OK && autodial.ShouldDialOnNetworkError();
+}