Wire up audio packet loss to BWE.

webrtc/test/mock_voe_channel_proxy.h

Index: webrtc/test/mock_voe_channel_proxy.h
diff --git a/webrtc/test/mock_voe_channel_proxy.h b/webrtc/test/mock_voe_channel_proxy.h
index 39b2e9fd585cf3e822640c1a67c43f04a88c0316..ea51154f541a95d526877b6ea6de4ca5729d901d 100644
--- a/webrtc/test/mock_voe_channel_proxy.h
+++ b/webrtc/test/mock_voe_channel_proxy.h
@@ -29,10 +29,11 @@ class MockVoEChannelProxy : public voe::ChannelProxy {
   MOCK_METHOD2(SetReceiveAudioLevelIndicationStatus, void(bool enable, int id));
   MOCK_METHOD1(EnableSendTransportSequenceNumber, void(int id));
   MOCK_METHOD1(EnableReceiveTransportSequenceNumber, void(int id));
-  MOCK_METHOD3(RegisterSenderCongestionControlObjects,
+  MOCK_METHOD4(RegisterSenderCongestionControlObjects,
                void(RtpPacketSender* rtp_packet_sender,
                     TransportFeedbackObserver* transport_feedback_observer,
-                    PacketRouter* packet_router));
+                    PacketRouter* packet_router,
+                    RtcpBandwidthObserver* bandwidth_observer));
   MOCK_METHOD1(RegisterReceiverCongestionControlObjects,
                void(PacketRouter* packet_router));
   MOCK_METHOD0(ResetCongestionControlObjects, void());