Hooked up RtcEventLog. It lives in Voice Engine and pointers are propagated to ACM and Call.

webrtc/voice_engine/voe_base_impl.h

Index: webrtc/voice_engine/voe_base_impl.h
diff --git a/webrtc/voice_engine/voe_base_impl.h b/webrtc/voice_engine/voe_base_impl.h
index dfb2e0474916cd4ef51d85a98d2a6e3068671d48..ecf3f265427c6f2aa519018f2e50c443e8531d05 100644
--- a/webrtc/voice_engine/voe_base_impl.h
+++ b/webrtc/voice_engine/voe_base_impl.h
@@ -53,6 +53,8 @@ class VoEBaseImpl : public VoEBase,
 
   int AssociateSendChannel(int channel, int accociate_send_channel) override;
 
+  RtcEventLog* GetEventLog() override;
+
   // AudioTransport
   int32_t RecordedDataIsAvailable(const void* audioSamples, uint32_t nSamples,
                                   uint8_t nBytesPerSample, uint8_t nChannels,