Add NetworkList/NetworkMonitor hooks and C++ wrappers.

ppapi/thunk/ppb_network_monitor_private_api.h

+// 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.
+
+#ifndef PPAPI_THUNK_PPB_NETWORK_MONITOR_PRIVATE_API_H_
+#define PPAPI_THUNK_PPB_NETWORK_MONITOR_PRIVATE_API_H_
+
+#include "ppapi/c/private/ppb_network_monitor_private.h"
+
+namespace ppapi {
+namespace thunk {
+
+class PPB_NetworkMonitor_Private_API {
+ public:
+  virtual ~PPB_NetworkMonitor_Private_API() {}
+};
+
+}  // namespace thunk
+}  // namespace ppapi
+
+#endif  // PPAPI_THUNK_PPB_NETWORK_MONITOR_PRIVATE_API_H_