NetEq: Ask AudioDecoder for sample rate instead of passing it as an argument

webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc

Index: webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc
diff --git a/webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc b/webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc
index 55cb5726c18ec8c7cfc994380136778ebfc6877b..ce8d86d36a8b0c0c8d9c1c5ed919799cbf30e666 100644
--- a/webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc
+++ b/webrtc/modules/audio_coding/acm2/audio_coding_module_unittest_oldapi.cc
@@ -1019,6 +1019,9 @@ TEST_F(AcmReceiverBitExactnessOldApi, 48kHzOutputExternalDecoder) {
   EXPECT_CALL(mock_decoder, IncomingPacket(_, _, _, _, _))
       .Times(AtLeast(1))
       .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::IncomingPacket));
+  EXPECT_CALL(mock_decoder, SampleRateHz())
+      .Times(AtLeast(1))
+      .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::SampleRateHz));
   EXPECT_CALL(mock_decoder, Channels())
       .Times(AtLeast(1))
       .WillRepeatedly(Invoke(&decoder, &AudioDecoderPcmU::Channels));