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

webrtc/voice_engine/channel.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 33 matching lines @@
 
 namespace webrtc {
 
 class AudioDeviceModule;
 class Config;
 class CriticalSectionWrapper;
 class FileWrapper;
 class ProcessThread;
 class ReceiveStatistics;
 class RemoteNtpTimeEstimator;
+class RtcEventLog;
 class RTPPayloadRegistry;
 class RtpReceiver;
 class RTPReceiverAudio;
 class RtpRtcp;
 class TelephoneEventHandler;
 class VoEMediaProcess;
 class VoERTPObserver;
 class VoiceEngineObserver;
 
 struct CallStatistics;
@@ skipping 377 matching lines @@
     // Used for obtaining RTT for a receive-only channel.
     void set_associate_send_channel(const ChannelOwner& channel) {
       assert(_channelId != channel.channel()->ChannelId());
       CriticalSectionScoped lock(assoc_send_channel_lock_.get());
       associate_send_channel_ = channel;
     }
 
     // Disassociate a send channel if it was associated.
     void DisassociateSendChannel(int channel_id);
 
+    // Sets an RtcEventLog object to enable logging of debug events in the Audio
+    // Coding Module. Calling this function with a nullptr is allowed and will
+    // stop all logging activity.
+    void SetEventLog(RtcEventLog* event_log);

[Henrik Grunell WebRTC, 2015/08/05 09:44:35]

Use a separate function for disabling the logging. It makes it clearer.

[Henrik Grunell WebRTC, 2015/08/07 11:30:03]

Please address this.

[terelius, 2015/08/11 09:04:34]

The main way to stop logging is to call StopLogging in RtcEventLog. Manipulating
the pointer was never intended as the primary method for changing logging
behavior. 

[Henrik Grunell WebRTC, 2015/08/12 12:38:50]

OK, well, the comment says differently. :) We need to decide if it can be
disabled with (if so I prefer a separate disable function + assert in the set
function that it wasn't set before) or not.

[ivoc, 2015/08/12 13:16:41]

The SetEventLog function is removed in the latest version (the pointer is now
propagated through the constructors), so making a StopLogging function here does
not make sense any more in this new design. 

[Henrik Grunell WebRTC, 2015/08/12 15:29:53]

Acknowledged.

+
 protected:
     void OnIncomingFractionLoss(int fraction_lost);
 
 private:
     bool ReceivePacket(const uint8_t* packet, size_t packet_length,
                        const RTPHeader& header, bool in_order);
     bool HandleRtxPacket(const uint8_t* packet,
                          size_t packet_length,
                          const RTPHeader& header);
     bool IsPacketInOrder(const RTPHeader& header) const;
@@ skipping 117 matching lines @@
     rtc::scoped_ptr<NetworkPredictor> network_predictor_;
     // An associated send channel.
     rtc::scoped_ptr<CriticalSectionWrapper> assoc_send_channel_lock_;
     ChannelOwner associate_send_channel_ GUARDED_BY(assoc_send_channel_lock_);
 };
 
 }  // namespace voe
 }  // namespace webrtc
 
 #endif  // WEBRTC_VOICE_ENGINE_CHANNEL_H_