Set the event log in Channel from AudioSendStream

webrtc/audio/audio_send_stream.cc

Index: webrtc/audio/audio_send_stream.cc
diff --git a/webrtc/audio/audio_send_stream.cc b/webrtc/audio/audio_send_stream.cc
index 17979d5760c0a2ca9ceecf9b7ad0cb5e545d3acc..3533b4a5205f6f74e890143934fb330e7f707f69 100644
--- a/webrtc/audio/audio_send_stream.cc
+++ b/webrtc/audio/audio_send_stream.cc
@@ -60,7 +60,8 @@ AudioSendStream::AudioSendStream(
     const webrtc::AudioSendStream::Config& config,
     const rtc::scoped_refptr<webrtc::AudioState>& audio_state,
     CongestionController* congestion_controller,
-    BitrateAllocator* bitrate_allocator)
+    BitrateAllocator* bitrate_allocator,
+    RtcEventLog* event_log)
     : config_(config),
       audio_state_(audio_state),
       bitrate_allocator_(bitrate_allocator) {
@@ -71,6 +72,7 @@ AudioSendStream::AudioSendStream(
 
   VoiceEngineImpl* voe_impl = static_cast<VoiceEngineImpl*>(voice_engine());
   channel_proxy_ = voe_impl->GetChannelProxy(config_.voe_channel_id);
+  channel_proxy_->SetRtcEventLog(event_log);
   channel_proxy_->RegisterSenderCongestionControlObjects(
       congestion_controller->pacer(),
       congestion_controller->GetTransportFeedbackObserver(),
@@ -101,6 +103,7 @@ AudioSendStream::AudioSendStream(
 AudioSendStream::~AudioSendStream() {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   LOG(LS_INFO) << "~AudioSendStream: " << config_.ToString();
+  channel_proxy_->SetRtcEventLog(nullptr);

[the sun, 2016/08/23 10:15:29]

super nit: registering methods are called in opposite order of how they are
called in the ctor here. it shouldn't matter, but let's keep it so.

   channel_proxy_->DeRegisterExternalTransport();
   channel_proxy_->ResetCongestionControlObjects();
 }