Landing with TBR given vacation times and the fact that none of this code is active "in production". The ADM2 implementation can be seen as experimental (non-default) code and it takes some work to enable it and replace the existing ADM. Hence, extremely low risk to break anything. TBR: henrik.lundin Bug: webrtc:9265 Change-Id: Ia5cfb2aaa8eaf9537b916b3375f55d8df6287071 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/145921 Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Commit-Queue: Henrik Andreassson <henrika@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28600}