Update from https://crrev.com/304418

net/base/net_util_posix.h

 // Copyright (c) 2014 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_BASE_NET_UTIL_POSIX_H_
 #define NET_BASE_NET_UTIL_POSIX_H_
 
-// This file is only used to expose some of the internals
-// of net_util_posix.cc to tests.
+// This file is only used to expose some of the internals of
+// net_util_posix.cc to net_util_linux.cc and net_util_mac.cc.
+
+#include <string>
+
+struct sockaddr;
 
 namespace net {
 namespace internal {
-
-#if !defined(OS_MACOSX) && !defined(OS_NACL)
-typedef char* (*GetInterfaceNameFunction)(unsigned int interface_index,
-                                          char* ifname);
-
-NET_EXPORT bool GetNetworkListImpl(
-    NetworkInterfaceList* networks,
-    int policy,
-    const base::hash_set<int>& online_links,
-    const internal::AddressTrackerLinux::AddressMap& address_map,
-    GetInterfaceNameFunction get_interface_name);
-
-#endif  // !OS_MACOSX && !OS_NACL
+#if !defined(OS_NACL)
+bool ShouldIgnoreInterface(const std::string& name, int policy);
+bool IsLoopbackOrUnspecifiedAddress(const sockaddr* addr);
+#endif  // !OS_NACL
 
 }  // namespace internal
-
 }  // namespace net
 
 #endif  // NET_BASE_NET_UTIL_POSIX_H_