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

webrtc/voice_engine/channel_manager.cc

Index: webrtc/voice_engine/channel_manager.cc
diff --git a/webrtc/voice_engine/channel_manager.cc b/webrtc/voice_engine/channel_manager.cc
index 76664d4b12ccd9becadd39f81363fc6b72a8e38c..9169d71d440fb89f94b4ae7c738ed050de016def 100644
--- a/webrtc/voice_engine/channel_manager.cc
+++ b/webrtc/voice_engine/channel_manager.cc
@@ -49,7 +49,9 @@ ChannelManager::ChannelManager(uint32_t instance_id, const Config& config)
     : instance_id_(instance_id),
       last_channel_id_(-1),
       lock_(CriticalSectionWrapper::CreateCriticalSection()),
-      config_(config) {}
+      config_(config),
+      event_log_(RtcEventLog::Create()) {
+}
 
 ChannelOwner ChannelManager::CreateChannel() {
   return CreateChannelInternal(config_);
@@ -61,7 +63,8 @@ ChannelOwner ChannelManager::CreateChannel(const Config& external_config) {
 
 ChannelOwner ChannelManager::CreateChannelInternal(const Config& config) {
   Channel* channel;
-  Channel::CreateChannel(channel, ++last_channel_id_, instance_id_, config);
+  Channel::CreateChannel(channel, ++last_channel_id_, instance_id_,
+                         event_log_.get(), config);
   ChannelOwner channel_owner(channel);
 
   CriticalSectionScoped crit(lock_.get());
@@ -128,6 +131,10 @@ size_t ChannelManager::NumOfChannels() const {
   return channels_.size();
 }
 
+RtcEventLog* ChannelManager::GetEventLog() const {
+  return event_log_.get();
+}
+
 ChannelManager::Iterator::Iterator(ChannelManager* channel_manager)
     : iterator_pos_(0) {
   channel_manager->GetAllChannels(&channels_);