Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_audio_send_stream_config.h

Index: webrtc/logging/rtc_event_log/events/rtc_event_audio_send_stream_config.h
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_audio_send_stream_config.h b/webrtc/logging/rtc_event_log/events/rtc_event_audio_send_stream_config.h
index acc1525a8ce9c84bee52955a6e3d3e5e52cd64de..653e29a64757e70aafb8780aeb67e86306a4c3d5 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_audio_send_stream_config.h
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_audio_send_stream_config.h
@@ -11,15 +11,25 @@
 #ifndef WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_AUDIO_SEND_STREAM_CONFIG_H_
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_AUDIO_SEND_STREAM_CONFIG_H_
 
+#include <memory>
+
 #include "webrtc/logging/rtc_event_log/events/rtc_event.h"
 
 namespace webrtc {
 
+namespace rtclog {
+struct StreamConfig;
+}  // namespace rtclog
+
 class RtcEventAudioSendStreamConfig final : public RtcEvent {
  public:
-  ~RtcEventAudioSendStreamConfig() override = default;
+  explicit RtcEventAudioSendStreamConfig(
+      std::unique_ptr<rtclog::StreamConfig> config);
+  ~RtcEventAudioSendStreamConfig() override;
 
   Type GetType() const override;
+
+  std::unique_ptr<rtclog::StreamConfig> config_;
 };
 
 }  // namespace webrtc