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diff --git a/third_party/libwebrtc/call/rtp_stream_receiver_controller_interface.h b/third_party/libwebrtc/call/rtp_stream_receiver_controller_interface.h
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+++ b/third_party/libwebrtc/call/rtp_stream_receiver_controller_interface.h
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+/*
+ *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef CALL_RTP_STREAM_RECEIVER_CONTROLLER_INTERFACE_H_
+#define CALL_RTP_STREAM_RECEIVER_CONTROLLER_INTERFACE_H_
+
+#include <memory>
+
+#include "call/rtp_packet_sink_interface.h"
+
+namespace webrtc {
+
+// An RtpStreamReceiver is responsible for the rtp-specific but
+// media-independent state needed for receiving an RTP stream.
+// TODO(bugs.webrtc.org/7135): Currently, only owns the association between ssrc
+// and the stream's RtpPacketSinkInterface. Ownership of corresponding objects
+// from modules/rtp_rtcp/ should move to this class (or rather, the
+// corresponding implementation class). We should add methods for getting rtp
+// receive stats, and for sending RTCP messages related to the receive stream.
+class RtpStreamReceiverInterface {
+ public:
+  virtual ~RtpStreamReceiverInterface() {}
+};
+
+// This class acts as a factory for RtpStreamReceiver objects.
+class RtpStreamReceiverControllerInterface {
+ public:
+  virtual ~RtpStreamReceiverControllerInterface() {}
+
+  virtual std::unique_ptr<RtpStreamReceiverInterface> CreateReceiver(
+      uint32_t ssrc,
+      RtpPacketSinkInterface* sink) = 0;
+};
+
+}  // namespace webrtc
+
+#endif  // CALL_RTP_STREAM_RECEIVER_CONTROLLER_INTERFACE_H_