NetEq: Fixing a corner case with depleted sync buffer

webrtc/modules/audio_coding/main/acm2/audio_coding_module_unittest_oldapi.cc

 /*
  *  Copyright (c) 2014 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.
  */
 
@@ skipping 982 matching lines @@
       .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::IncomingPacket));
   EXPECT_CALL(mock_decoder, Channels())
       .Times(AtLeast(1))
       .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::Channels));
   EXPECT_CALL(mock_decoder, Decode(_, _, _, _, _, _))
       .Times(AtLeast(1))
       .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::Decode));
   EXPECT_CALL(mock_decoder, HasDecodePlc())
       .Times(AtLeast(1))
       .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::HasDecodePlc));
+  EXPECT_CALL(mock_decoder, PacketDuration(_, _))
+      .Times(AtLeast(1))
+      .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::PacketDuration));
   ExternalDecoder ed;
   ed.rtp_payload_type = 0;
   ed.external_decoder = &mock_decoder;
   ed.sample_rate_hz = 8000;
   ed.num_channels = 1;
   std::vector<ExternalDecoder> external_decoders;
   external_decoders.push_back(ed);
 
   Run(48000, PlatformChecksum("aa7c232f63a67b2a72703593bdd172e0",
                               "0155665e93067c4e89256b944dd11999",
@@ skipping 731 matching lines @@
   Run(16000, 8000, 1000);
 }
 
 TEST_F(AcmSwitchingOutputFrequencyOldApi, Toggle8KhzTo16Khz) {
   Run(8000, 16000, 1000);
 }
 
 #endif
 
 }  // namespace webrtc