It is done to better show what for this class exists and also restore
correspondence between config and interface, that is implemented by
configurable object.
Bug: webrtc:9630
Change-Id: I28456d1c792d67d9b2a405c8599054137a5d596a
Reviewed-on: https://webrtc-review.googlesource.com/c/104003
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Reviewed-by: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25041}