move kInvalidNetAddress to constants file for split_link

ppapi/shared_impl/private/net_address_private_impl_constants.cc

Index: ppapi/shared_impl/private/net_address_private_impl_constants.cc
diff --git a/ppapi/shared_impl/private/net_address_private_impl_constants.cc b/ppapi/shared_impl/private/net_address_private_impl_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..44cc4d38b5f4e7274367a97dab427c204e3f195d
--- /dev/null
+++ b/ppapi/shared_impl/private/net_address_private_impl_constants.cc
@@ -0,0 +1,16 @@
+// Copyright (c) 2012 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 "ppapi/shared_impl/private/net_address_private_impl.h"
+
+#include "ppapi/c/private/ppb_net_address_private.h"
+
+namespace ppapi {
+
+#if !defined(OS_NACL)
+// static
+const PP_NetAddress_Private NetAddressPrivateImpl::kInvalidNetAddress = { 0 };
+#endif  // !defined(OS_NACL)
+
+}  // namespace ppapi