TCPSockets are switched to the new Pepper proxy.

ppapi/proxy/error_conversion.h

+// Copyright 2013 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 PPAPI_PROXY_ERROR_CONVERSION_H_
+#define PPAPI_PROXY_ERROR_CONVERSION_H_
+
+#include "ppapi/c/pp_stdint.h"
+#include "ppapi/proxy/ppapi_proxy_export.h"
+
+namespace ppapi {
+namespace proxy {
+
+// When |private_api| is true, coverts all network-related errors +;
+// PP_ERROR_NOACCESS to PP_ERROR_FAILED. Otherwise, returns |pp_error|
+// as is.
+PPAPI_PROXY_EXPORT int32_t ConvertNetworkAPIErrorForCompatibility(
+    int32_t pp_error,
+    bool private_api);
+
+}  // namespace proxy
+}  // namespace ppapi
+
+#endif  // PPAPI_PROXY_ERROR_CONVERSION_H_