Also simplify exporter implementation Bug: b/246095034 Change-Id: I656f17f7ee63d26445f3e420f3d22c52f336fa21 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/276049 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/main@{#38135}