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

webrtc/voice_engine/include/voe_base.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 24 matching lines @@
 #define WEBRTC_VOICE_ENGINE_VOE_BASE_H
 
 #include "webrtc/common_types.h"
 
 namespace webrtc {
 
 class AudioDeviceModule;
 class AudioProcessing;
 class AudioTransport;
 class Config;
+class RtcEventLog;
 
 const int kVoEDefault = -1;
 
 // VoiceEngineObserver
 class WEBRTC_DLLEXPORT VoiceEngineObserver {
  public:
   // This method will be called after the occurrence of any runtime error
   // code, or warning notification, when the observer interface has been
   // installed using VoEBase::RegisterVoiceEngineObserver().
   virtual void CallbackOnError(int channel, int errCode) = 0;
@@ skipping 121 matching lines @@
   // TODO(xians): Make the interface pure virtual after libjingle
   // implements the interface in its FakeWebRtcVoiceEngine.
   virtual AudioTransport* audio_transport() { return NULL; }
 
   // Associate a send channel to a receive channel.
   // Used for obtaining RTT for a receive-only channel.
   // One should be careful not to crate a circular association, e.g.,
   // 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() {}
 };
 
 }  // namespace webrtc
 
 #endif  //  WEBRTC_VOICE_ENGINE_VOE_BASE_H