Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_audio_receive_stream_config.h

Index: webrtc/logging/rtc_event_log/events/rtc_event_audio_receive_stream_config.h
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_audio_receive_stream_config.h b/webrtc/logging/rtc_event_log/events/rtc_event_audio_receive_stream_config.h
index 23263acd6bec5fdfe0d67218b20bb79c084b876f..0aec84f3c82aab074fe65f77f23c415844e310da 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_audio_receive_stream_config.h
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_audio_receive_stream_config.h
@@ -11,15 +11,25 @@
 #ifndef WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_AUDIO_RECEIVE_STREAM_CONFIG_H_
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_AUDIO_RECEIVE_STREAM_CONFIG_H_
 
+#include <memory>
+
 #include "webrtc/logging/rtc_event_log/events/rtc_event.h"
 
 namespace webrtc {
 
+namespace rtclog {
+struct StreamConfig;
+}  // namespace rtclog
+
 class RtcEventAudioReceiveStreamConfig final : public RtcEvent {
  public:
-  ~RtcEventAudioReceiveStreamConfig() override = default;
+  explicit RtcEventAudioReceiveStreamConfig(
+      std::unique_ptr<rtclog::StreamConfig> config);
+  ~RtcEventAudioReceiveStreamConfig() override;
 
   Type GetType() const override;
+
+  std::unique_ptr<rtclog::StreamConfig> config_;
 };
 
 }  // namespace webrtc