Add the internals of RtcEvent's subclasses

webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.cc

Index: webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.cc
diff --git a/webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.cc b/webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.cc
index ddb226e18945db680f4e9cc7fc07f277effad353..60646b636a389ed569682239808215f7315931f4 100644
--- a/webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.cc
+++ b/webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.cc
@@ -10,8 +10,18 @@
 
 #include "webrtc/logging/rtc_event_log/events/rtc_event_rtp_header_outgoing.h"
 
+#include <utility>
+
+#include "webrtc/modules/rtp_rtcp/source/rtp_packet_to_send.h"
+
 namespace webrtc {
 
+RtcEventRtpHeaderOutgoing::RtcEventRtpHeaderOutgoing(
+    std::unique_ptr<RtpPacketToSend> packet)
+    : packet_(std::move(packet)) {}
+
+RtcEventRtpHeaderOutgoing::~RtcEventRtpHeaderOutgoing() = default;
+
 RtcEvent::Type RtcEventRtpHeaderOutgoing::GetType() const {
   return RtcEvent::Type::RtpHeaderOutgoing;
 }