Add jitterBufferDelay and jitterBufferEmittedCount stats for video

Bug: webrtc:10450
Change-Id: I6f586a3c6781450b9bfdcc31dc3f49f6289d70e0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/138265
Commit-Queue: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Magnus Flodman <mflodman@webrtc.org>
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28096}
diff --git a/call/video_receive_stream.h b/call/video_receive_stream.h
index 63fc5b7..8bd9982 100644
--- a/call/video_receive_stream.h
+++ b/call/video_receive_stream.h
@@ -77,6 +77,10 @@
     int current_delay_ms = 0;
     int target_delay_ms = 0;
     int jitter_buffer_ms = 0;
+    // https://w3c.github.io/webrtc-stats/#dom-rtcvideoreceiverstats-jitterbufferdelay
+    double jitter_buffer_delay_seconds = 0;
+    // https://w3c.github.io/webrtc-stats/#dom-rtcvideoreceiverstats-jitterbufferemittedcount
+    uint64_t jitter_buffer_emitted_count = 0;
     int min_playout_delay_ms = 0;
     int render_delay_ms = 10;
     int64_t interframe_delay_max_ms = -1;