Implement parts of the Mojo TCP interfaces.

mojo/services/network/net_adapters.h

Index: mojo/services/network/net_adapters.h
diff --git a/mojo/services/network/net_adapters.h b/mojo/services/network/net_adapters.h
new file mode 100644
index 0000000000000000000000000000000000000000..120246e88fd68ebc8ff088cdcd9e18c9ffe50eeb
--- /dev/null
+++ b/mojo/services/network/net_adapters.h
@@ -0,0 +1,16 @@
+// Copyright 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 MOJO_SERVICES_NETWORK_NET_ADAPTERS_H_
+#define MOJO_SERVICES_NETWORK_NET_ADAPTERS_H_
+
+#include "mojo/services/public/interfaces/network/network_error.mojom.h"
+
+namespace mojo {
+
+NetworkErrorPtr MakeNetworkError(int error_code);
+
+}  // namespace mojo
+
+#endif  // MOJO_SERVICES_NETWORK_NET_ADAPTERS_H_