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

webrtc/voice_engine/include/voe_base.h

Index: webrtc/voice_engine/include/voe_base.h
diff --git a/webrtc/voice_engine/include/voe_base.h b/webrtc/voice_engine/include/voe_base.h
index c82ad3dc3a6b19860c8ca0f08c5b460413ba7919..fdf28389ce6054980d713456869f69bed510d164 100644
--- a/webrtc/voice_engine/include/voe_base.h
+++ b/webrtc/voice_engine/include/voe_base.h
@@ -42,6 +42,7 @@ class AudioDeviceModule;
 class AudioProcessing;
 class AudioTransport;
 class Config;
+class RtcEventLog;
 
 const int kVoEDefault = -1;
 
@@ -183,6 +184,10 @@ class WEBRTC_DLLEXPORT VoEBase {
   // 1 <- 2 <- 1.
   virtual int AssociateSendChannel(int channel, int accociate_send_channel) = 0;
 
+  // Get a pointer to the event logging object associated with this Voice
+  // Engine.
+  virtual RtcEventLog* GetEventLog() = 0;
+
  protected:
   VoEBase() {}
   virtual ~VoEBase() {}