[video] Plumbing of ReportBlockData from RTCPReceiver to MediaSenderInfo This is part of implementing RTCRemoteInboundRtpStreamStats. The CL was split up into smaller pieces for reviewability. Spec: https://w3c.github.io/webrtc-stats/#dom-rtcremoteinboundrtpstreamstats In [1], ReportBlockData was implemented and tested. This CL adds the plumbing to make it available in MediaSenderInfo for video streams, but the code is not wired up to make use of these stats. In follow-up CL [2], ReportBlockData will be used to implement RTCRemoteInboundRtpStreamStats. The follow-up CL will add integration tests exercising the full code path. [1] https://webrtc-review.googlesource.com/c/src/+/136584 [2] https://webrtc-review.googlesource.com/c/src/+/138067 Bug: webrtc:10456 Change-Id: Icd20452cb4b4908203b28ae9d9f52c25693cf91d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/138065 Reviewed-by: Stefan Holmer <stefan@webrtc.org> Reviewed-by: Niels Moller <nisse@webrtc.org> Commit-Queue: Henrik Boström <hbos@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28071}

diff --git a/call/rtp_transport_controller_send_interface.h b/call/rtp_transport_controller_send_interface.h
index 450b65b..0db4f80 100644
--- a/call/rtp_transport_controller_send_interface.h
+++ b/call/rtp_transport_controller_send_interface.h

@@ -25,6 +25,7 @@
 #include "api/transport/bitrate_settings.h"
 #include "call/rtp_config.h"
 #include "logging/rtc_event_log/rtc_event_log.h"
+#include "modules/rtp_rtcp/include/report_block_data.h"
 #include "modules/rtp_rtcp/include/rtcp_statistics.h"
 #include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
 
@@ -56,6 +57,7 @@
   RtcpIntraFrameObserver* intra_frame_callback;
   RtcpLossNotificationObserver* rtcp_loss_notification_observer;
   RtcpStatisticsCallback* rtcp_stats;
+  ReportBlockDataObserver* report_block_data_observer;
   StreamDataCountersCallback* rtp_stats;
   BitrateStatisticsObserver* bitrate_observer;
   FrameCountObserver* frame_count_observer;