Required logic to query the min value of a SampleCounter along with some additions to the existing test cases Bug: webrtc:15580 Change-Id: I46afb30ad130f17f9e68ebc794b6935187bb2479 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/323900 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#40956}