This is done to better reflect the responsibility of the class. The implementation implement a new interface FeedbackGeneratorInterface. The purpose of the interface is to allow a new implementation that supports RFC 8888. Bug: webrtc:42225697 Change-Id: Id087dd7422abbcd6016693c076a65f4c4efd5712 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/351280 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Commit-Queue: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42366}