convert almost all of video/ (and the collateral) Bug: webrtc:10335 Change-Id: Ic94e05937f54d11ee8a635b6b66fd146962d9f11 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/254601 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Jonas Oreland <jonaso@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36192}