Mirko Bonadei a3fad93d87 Revert "Remove the aec_quality_min metric."
This reverts commit 99b1bd1553d442ef7d27755567594ac7e65c53b7.

Reason for revert: breaks downstream projects.

Original change's description:
> Remove the aec_quality_min metric.
> 
> Removing this unused metric.
> 
> Bug: webrtc:8563
> Change-Id: I47446d6aaf5dcc3a8ea57f9248576d68bbe2a304
> Reviewed-on: https://webrtc-review.googlesource.com/30720
> Commit-Queue: Gustaf Ullberg <gustaf@webrtc.org>
> Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#21158}

TBR=solenberg@webrtc.org,gustaf@webrtc.org

Change-Id: I90f16915d517123e4bfba39db64424cdcc4ef03f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:8563
Reviewed-on: https://webrtc-review.googlesource.com/31360
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21160}
2017-12-08 11:45:50 +00:00
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