[rtp_rtcp] RtcpReceiverTest rewritten using public available interface (observers) instead intermid…

webrtc/modules/modules.gyp

 # Copyright (c) 2011 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.
 
 {
   'includes': [
@@ skipping 279 matching lines @@
             'remote_bitrate_estimator/remote_bitrate_estimator_single_stream_unittest.cc',
             'remote_bitrate_estimator/remote_bitrate_estimator_unittest_helper.cc',
             'remote_bitrate_estimator/remote_bitrate_estimator_unittest_helper.h',
             'remote_bitrate_estimator/remote_estimator_proxy_unittest.cc',
             'remote_bitrate_estimator/send_time_history_unittest.cc',
             'remote_bitrate_estimator/test/bwe_test_framework_unittest.cc',
             'remote_bitrate_estimator/test/bwe_unittest.cc',
             'remote_bitrate_estimator/test/estimators/nada_unittest.cc',
             'remote_bitrate_estimator/test/metric_recorder_unittest.cc',
             'remote_bitrate_estimator/transport_feedback_adapter_unittest.cc',
+            'rtp_rtcp/mocks/mock_rtcp_observers.h',
             'rtp_rtcp/source/byte_io_unittest.cc',
             'rtp_rtcp/source/fec_receiver_unittest.cc',
             'rtp_rtcp/source/fec_test_helper.cc',
             'rtp_rtcp/source/fec_test_helper.h',
             'rtp_rtcp/source/mock/mock_rtp_payload_strategy.h',
             'rtp_rtcp/source/nack_rtx_unittest.cc',
             'rtp_rtcp/source/packet_loss_stats_unittest.cc',
             'rtp_rtcp/source/playout_delay_oracle_unittest.cc',
             'rtp_rtcp/source/producer_fec_unittest.cc',
             'rtp_rtcp/source/receive_statistics_unittest.cc',
@@ skipping 480 matching lines @@
               'sources': [
                 'modules_unittests.isolate',
               ],
             },
           ],
         }],
       ],
     }], # include_tests
   ], # conditions
 }