This CL avoids measurement for screencast encoding work. The reason is
screencast can cling on to and re-encode old video frames for which
webrtc::VideoFrame::reference_time() is unchanged.
Bug: chromium:1498378
Change-Id: I5bf79d29ef7f57ddff2622cbb6c3436480bd16ba
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/326103
Commit-Queue: Markus Handell <handellm@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Auto-Submit: Markus Handell <handellm@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41097}