PPAPI: Introduce PPB_NetworkProxy_Dev

ppapi/cpp/dev/network_proxy_dev.h

+// Copyright (c) 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_CPP_NETWORK_PROXY_H_
+#define PPAPI_CPP_NETWORK_PROXY_H_
+
+#include <string>
+
+#include "ppapi/c/dev/ppb_network_proxy_dev.h"
+#include "ppapi/cpp/completion_callback.h"
+#include "ppapi/cpp/instance_handle.h"
+
+namespace pp {
+
+class NetworkProxy {
+ public:
+  static bool IsAvailable();
+
+  static int32_t GetProxyForURL(
+      const InstanceHandle& instance,
+      const Var& url,
+      const pp::CompletionCallbackWithOutput<Var>& callback);
+};
+
+}  // namespace pp
+
+#endif  // PPAPI_CPP_NETWORK_PROXY_H_