Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_video_send_stream_config.h

Index: webrtc/logging/rtc_event_log/events/rtc_event_video_send_stream_config.h
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_video_send_stream_config.h b/webrtc/logging/rtc_event_log/events/rtc_event_video_send_stream_config.h
index 3f1f638a8255ae14029576040c36364bd9af14dc..09e633203bc98835829c07019f87d4a4d30c9a55 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_video_send_stream_config.h
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_video_send_stream_config.h
@@ -11,15 +11,25 @@
 #ifndef WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_VIDEO_SEND_STREAM_CONFIG_H_
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_VIDEO_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 RtcEventVideoSendStreamConfig final : public RtcEvent {
  public:
-  ~RtcEventVideoSendStreamConfig() override = default;
+  explicit RtcEventVideoSendStreamConfig(
+      std::unique_ptr<rtclog::StreamConfig> config);
+  ~RtcEventVideoSendStreamConfig() override;
 
   Type GetType() const override;
+
+  std::unique_ptr<rtclog::StreamConfig> config_;
 };
 
 }  // namespace webrtc