Adds support for the DHCP portion of the WPAD (proxy auto-discovery) protocol.

net/proxy/dhcpcsvc_init_win.h

+// Copyright (c) 2011 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.
+#ifndef NET_PROXY_DHCPCSVC_INIT_WIN_H
+#define NET_PROXY_DHCPCSVC_INIT_WIN_H
+#pragma once
+
+namespace net {
+
+// Initialization of the Dhcpcsvc library must happen before any of its
+// calls are made.  This function will make sure that the appropriate
+// initialization has been done, and that uninitialization is also
+// performed at static uninitialization time.
+//
+// Note: This initializes only for DHCP, not DHCPv6.
+void EnsureDhcpcsvcInit();
+
+}  // namespace net
+
+#endif  // NET_PROXY_DHCPCSVC_INIT_WIN_H