Added support for logging the SSRC corresponding to AudioPlayout events.

webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc

Index: webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
diff --git a/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc b/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
index 3013925c02efe305954d43700004feb3bca39cd4..98b5265e9178c031a8cd18886317a0c4b762273c 100644
--- a/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
+++ b/webrtc/modules/audio_coding/main/acm2/audio_coding_module_impl.cc
@@ -27,7 +27,6 @@
 #include "webrtc/system_wrappers/interface/rw_lock_wrapper.h"
 #include "webrtc/system_wrappers/interface/trace.h"
 #include "webrtc/typedefs.h"
-#include "webrtc/video/rtc_event_log.h"
 
 namespace webrtc {
 
@@ -147,8 +146,7 @@ AudioCodingModuleImpl::AudioCodingModuleImpl(
       first_frame_(true),
       callback_crit_sect_(CriticalSectionWrapper::CreateCriticalSection()),
       packetization_callback_(NULL),
-      vad_callback_(NULL),
-      event_log_(config.event_log) {
+      vad_callback_(NULL) {
   if (InitializeReceiverSafe() < 0) {
     WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, id_,
                  "Cannot initialize receiver");
@@ -682,11 +680,6 @@ int AudioCodingModuleImpl::PlayoutData10Ms(int desired_freq_hz,
                  "PlayoutData failed, RecOut Failed");
     return -1;
   }
-  {
-    if (event_log_)
-      event_log_->LogDebugEvent(RtcEventLog::DebugEvent::kAudioPlayout);
-  }
-
   audio_frame->id_ = id_;
   return 0;
 }