Also add assertion on it for some DVQA tests Bug: webrtc:14995, b/271542055 Change-Id: Ie35a85832b6d860885366fb613700bdef3db38f0 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/297820 Commit-Queue: Artem Titov <titovartem@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/main@{#39611}