This CL introduces a major refactoring of AecState for the purpose of
simplifying further improvements to the logic in this code.
The changes have successfully been tested for bitexactness.
Bug: webrtc:8671
Change-Id: If98efde55a22c76b093089a11a0562daac7e16e6
Reviewed-on: https://webrtc-review.googlesource.com/c/102362
Commit-Queue: Per Åhgren <peah@webrtc.org>
Reviewed-by: Gustaf Ullberg <gustaf@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24996}
c5a38ad143