* Switches TimestampExtrapolator to use Timestamp as well. Bug: webrtc:13589 Change-Id: I042be5d693068553d2e8eb92fa532092d77bd7ef Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/249993 Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Commit-Queue: Evan Shrubsole <eshr@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36112}