Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_bwe_update_delay_based.h

Index: webrtc/logging/rtc_event_log/events/rtc_event_bwe_update_delay_based.h
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_bwe_update_delay_based.h b/webrtc/logging/rtc_event_log/events/rtc_event_bwe_update_delay_based.h
index 3f969d6dbcc954a56ebfc968693ffaed88036c7c..3e740eda263beba91b4b7a1ea7589ddda05681d6 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_bwe_update_delay_based.h
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_bwe_update_delay_based.h
@@ -12,14 +12,22 @@
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_BWE_UPDATE_DELAY_BASED_H_
 
 #include "webrtc/logging/rtc_event_log/events/rtc_event.h"
+#include "webrtc/typedefs.h"
 
 namespace webrtc {
 
+enum class BandwidthUsage;
+
 class RtcEventBweUpdateDelayBased final : public RtcEvent {
  public:
-  ~RtcEventBweUpdateDelayBased() override = default;
+  RtcEventBweUpdateDelayBased(int32_t bitrate_bps,
+                              BandwidthUsage detector_state);
+  ~RtcEventBweUpdateDelayBased() override;
 
   Type GetType() const override;
+
+  int32_t bitrate_bps_;
+  BandwidthUsage detector_state_;
 };
 
 }  // namespace webrtc