Second attempt to land https://webrtc-review.googlesource.com/c/src/+/15481. This time with an extra (dummy) interface to ensure that we don't break downstream clients. Improves native Android audio implementations. Bug: webrtc:8453 Change-Id: I659a3013ae523a2588e4c41ca44b7d0d2d65efb7 Reviewed-on: https://webrtc-review.googlesource.com/16425 Commit-Queue: Henrik Andreassson <henrika@webrtc.org> Reviewed-by: Sami Kalliomäki <sakal@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20462}