This CL ensures a smooth transition from the parameters used during the startup phase in the call to the parameters used in the rest of the call. This is achieved by slowly transitioning between the parameter sets via interpolation. Bug: chromium:819240,webrtc:8983 Change-Id: Ifbac4b93fc6ad6efc441f41fb88ef09e8ee3d669 Reviewed-on: https://webrtc-review.googlesource.com/60360 Reviewed-by: Jesus de Vicente Pena <devicentepena@webrtc.org> Commit-Queue: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22451}