The AGC2 params must be exposed via `AudioProcessing::Config::GainController2` and the Finch params must be parsed in blink (see [1]). Note: this CL breaks the chain of 3 CLs titled "AGC2 AdaptiveModeLevelEstimator min consecutive speech frames". [1] https://source.chromium.org/chromium/chromium/src/+/master:third_party/blink/renderer/modules/mediastream/media_stream_audio_processor.cc;l=593-596?q=HybridAgc&start=11 Bug: webrtc:7494 Change-Id: Ie7bd1bef1d6caf7d2b20600a1626c12171b67c82 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185044 Commit-Queue: Alessio Bazzica <alessiob@webrtc.org> Reviewed-by: Minyue Li <minyue@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32230}