TimestampExtrapolator maps RTP timestamps of received video frames
to local timestamps. As part of this mapping, the clock drift
between the local and remote clock is estimated.
Add the histogram WebRTC.Video.EstimatedClockDrift_ppm to log the
relative clock drift in points per million.
Bug: b/363166487
Change-Id: I0c2e628ef72c05a93e1f3138c8f71c77467130b7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/368342
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Johannes Kron <kron@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43413}
bda11ca6da