Update smoothed bitrate.

webrtc/audio/audio_send_stream_unittest.cc

Index: webrtc/audio/audio_send_stream_unittest.cc
diff --git a/webrtc/audio/audio_send_stream_unittest.cc b/webrtc/audio/audio_send_stream_unittest.cc
index 4efd91b3e5618e2c6e5e4951836c9c124aebce56..7973e14bf1a0526cb7e7204c370539607683e2ec 100644
--- a/webrtc/audio/audio_send_stream_unittest.cc
+++ b/webrtc/audio/audio_send_stream_unittest.cc
@@ -419,6 +419,7 @@ TEST(AudioSendStreamTest, DoesNotPassHigherBitrateThanMaxBitrate) {
       helper.bitrate_allocator(), helper.event_log(), helper.rtcp_rtt_stats());
   EXPECT_CALL(*helper.channel_proxy(),
               SetBitrate(helper.config().max_bitrate_bps, _));
+  EXPECT_CALL(*helper.channel_proxy(), AdaptCodec());
   send_stream.OnBitrateUpdated(helper.config().max_bitrate_bps + 5000, 0.0, 50,
                                6000);
 }
@@ -430,6 +431,7 @@ TEST(AudioSendStreamTest, ProbingIntervalOnBitrateUpdated) {
       helper.packet_router(), helper.congestion_controller(),
       helper.bitrate_allocator(), helper.event_log(), helper.rtcp_rtt_stats());
   EXPECT_CALL(*helper.channel_proxy(), SetBitrate(_, 5000));
+  EXPECT_CALL(*helper.channel_proxy(), AdaptCodec());
   send_stream.OnBitrateUpdated(50000, 0.0, 50, 5000);
 }