Also fix minor issues in this class. Bug: webrtc:10138 Change-Id: Icb3ec7f6296c34da260e701ec51d7b87ce62a4d7 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/127281 Reviewed-by: Sebastian Jansson <srte@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27073}