Only one implementation of MockRtpPacketSink once

webrtc/call/test/mock_rtp_packet_sink_interface.h

+/*
+ *  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 WEBRTC_CALL_TEST_MOCK_RTP_PACKET_SINK_INTERFACE_H_
+#define WEBRTC_CALL_TEST_MOCK_RTP_PACKET_SINK_INTERFACE_H_
+
+#include "webrtc/call/rtp_packet_sink_interface.h"
+
+#include "webrtc/test/gmock.h"
+
+namespace webrtc {
+
+class MockRtpPacketSink : public RtpPacketSinkInterface {
+ public:
+  MOCK_METHOD1(OnRtpPacket, void(const RtpPacketReceived&));
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_CALL_TEST_MOCK_RTP_PACKET_SINK_INTERFACE_H_