Remove encoding code from RtcEventLogImpl and use RtcEventLogEncoder instead

webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc

Index: webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc b/webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc
index b4fcbfd5ead1cd92eecc99d734e997276b422780..7480d61491bb5bf84141e4cdc343593731783ce3 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.cc
@@ -9,10 +9,13 @@
  */
 
 #include <math.h>
+
 #include <algorithm>
 
+#include "webrtc/logging/rtc_event_log/events/rtc_event_audio_network_adaptation.h"
 #include "webrtc/logging/rtc_event_log/rtc_event_log.h"
 #include "webrtc/modules/audio_coding/audio_network_adaptor/event_log_writer.h"
+#include "webrtc/rtc_base/ptr_util.h"
 
 namespace webrtc {
 
@@ -60,7 +63,9 @@ void EventLogWriter::MaybeLogEncoderConfig(
 }
 
 void EventLogWriter::LogEncoderConfig(const AudioEncoderRuntimeConfig& config) {
-  event_log_->LogAudioNetworkAdaptation(config);
+  auto config_copy = rtc::MakeUnique<AudioEncoderRuntimeConfig>(config);
+  event_log_->Log(
+      rtc::MakeUnique<RtcEventAudioNetworkAdaptation>(std::move(config_copy)));
   last_logged_config_ = config;
 }