Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_rtcp_header_outgoing.h

Index: webrtc/logging/rtc_event_log/events/rtc_event_rtcp_header_outgoing.h
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_rtcp_header_outgoing.h b/webrtc/logging/rtc_event_log/events/rtc_event_rtcp_header_outgoing.h
index 6ae8510a0dba5df3849bcb20330b01083049b6f0..e9229cc5e89ab742c3beed348e3c5b8ddfd9274b 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_rtcp_header_outgoing.h
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_rtcp_header_outgoing.h
@@ -11,15 +11,20 @@
 #ifndef WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_RTCP_HEADER_OUTGOING_H_
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_RTCP_HEADER_OUTGOING_H_
 
+#include "webrtc/api/array_view.h"
 #include "webrtc/logging/rtc_event_log/events/rtc_event.h"
+#include "webrtc/rtc_base/buffer.h"
 
 namespace webrtc {
 
 class RtcEventRtcpHeaderOutgoing final : public RtcEvent {
  public:
-  ~RtcEventRtcpHeaderOutgoing() override = default;
+  explicit RtcEventRtcpHeaderOutgoing(rtc::ArrayView<const uint8_t> packet);
+  ~RtcEventRtcpHeaderOutgoing() override;
 
   Type GetType() const override;
+
+  rtc::Buffer packet_;
 };
 
 }  // namespace webrtc