Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_rtp_packet_incoming.h

Index: webrtc/logging/rtc_event_log/events/rtc_event_rtp_packet_incoming.h
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_rtp_packet_incoming.h b/webrtc/logging/rtc_event_log/events/rtc_event_rtp_packet_incoming.h
index 4ecfae7d9ac91e83845befb15537e2db6d8f7ff6..662dc64f275842e31b47ef5205bb36421fbdf2e9 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_rtp_packet_incoming.h
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_rtp_packet_incoming.h
@@ -12,16 +12,23 @@
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_EVENTS_RTC_EVENT_RTP_PACKET_INCOMING_H_
 
 #include "webrtc/logging/rtc_event_log/events/rtc_event.h"
+#include "webrtc/modules/rtp_rtcp/source/rtp_packet.h"
 
 namespace webrtc {
 
+class RtpPacketReceived;
+
 class RtcEventRtpPacketIncoming final : public RtcEvent {
  public:
-  ~RtcEventRtpPacketIncoming() override = default;
+  explicit RtcEventRtpPacketIncoming(const RtpPacketReceived& packet);
+  ~RtcEventRtpPacketIncoming() override;
 
   Type GetType() const override;
 
   bool IsConfigEvent() const override;
+
+  rtp::Packet header_;          // Only the packet's header will be stored here.
+  const size_t packet_length_;  // Length before stripping away all but header.
 };
 
 }  // namespace webrtc