These tests verify the ability to override either the old or the
new function, and get the expected results.
Bug: webrtc:13931
Change-Id: Iebd0c929eda73dea75f32b96eb91a64e059a3cf8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/294880
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40120}