Only one implementation of MockRtpPacketSink once

webrtc/call/rtp_demuxer_unittest.cc

 /*
  *  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.
  */
 
 #include "webrtc/call/rtp_demuxer.h"
 
 #include <memory>
 #include <string>
 
 #include "webrtc/call/rsid_resolution_observer.h"
-#include "webrtc/call/rtp_packet_sink_interface.h"
+#include "webrtc/call/rtp_packet_sink_interface_mock.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/rtp_rtcp/include/rtp_header_extension_map.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_header_extensions.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_packet_received.h"
 #include "webrtc/rtc_base/arraysize.h"
 #include "webrtc/rtc_base/basictypes.h"
 #include "webrtc/rtc_base/checks.h"
 #include "webrtc/rtc_base/ptr_util.h"
 #include "webrtc/test/gmock.h"
 #include "webrtc/test/gtest.h"
 
 namespace webrtc {
 
 namespace {
 
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::InSequence;
 using ::testing::NiceMock;
 
-class MockRtpPacketSink : public RtpPacketSinkInterface {
- public:
-  MOCK_METHOD1(OnRtpPacket, void(const RtpPacketReceived&));
-};
-
 class MockRsidResolutionObserver : public RsidResolutionObserver {
  public:
   MOCK_METHOD2(OnRsidResolved, void(const std::string& rsid, uint32_t ssrc));
 };
 
 MATCHER_P(SamePacketAs, other, "") {
   return arg.Ssrc() == other.Ssrc() &&
          arg.SequenceNumber() == other.SequenceNumber();
 }
 
@@ skipping 543 matching lines @@
      DregisterationOfNeverRegisteredRsidResolutionObserverDisallowed) {
   RtpDemuxer demuxer;
   MockRsidResolutionObserver observer;
   EXPECT_DEATH(demuxer.DeregisterRsidResolutionObserver(&observer), "");
 }
 
 #endif
 
 }  // namespace
 }  // namespace webrtc