Define Cast Content API

chrome/renderer/media/cast_udp_transport.h

Index: chrome/renderer/media/cast_udp_transport.h
diff --git a/chrome/renderer/media/cast_udp_transport.h b/chrome/renderer/media/cast_udp_transport.h
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+++ b/chrome/renderer/media/cast_udp_transport.h
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+// 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 CHROME_RENDERER_MEDIA_CAST_UDP_TRANSPORT_H_
+#define CHROME_RENDERER_MEDIA_CAST_UDP_TRANSPORT_H_
+
+#include "base/basictypes.h"
+#include "net/base/ip_endpoint.h"
+
+// This class represents an end point to which communication is done by
+// UDP. The interface does not allow direct access to a UDP socket but
+// represents a transport mechanism.
+class CastUdpTransport {
+ public:
+  CastUdpTransport();
+  ~CastUdpTransport();
+
+  // Begin the transport by specifying the remote IP address.
+  // The transport will use UDP.
+  void Start(net::IPEndPoint remote_address);
+
+  // Terminate the communication with the end point.
+  void Stop();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(CastUdpTransport);
+};
+
+#endif  // CHROME_RENDERER_MEDIA_CAST_UDP_TRANSPORT_H_