This reverts commit 51f8e09540b1816236ceb1eaa540a7adb019b393. Reason for revert: Breaks downstream project. Original change's description: > Replace field trials with WebRtcKeyValueConfig in LossBasedBandwidthEstimation > > > Bug: webrtc:10335 > Change-Id: I85d62b9b63e0b6ec5dd4b957738a67a9a11e3a1f > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/205627 > Reviewed-by: Christoffer Rodbro <crodbro@webrtc.org> > Commit-Queue: Per Kjellander <perkj@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#33210} TBR=perkj@webrtc.org,crodbro@webrtc.org Change-Id: I220a0e5316c54c435d04bc2bbd714b9d9b92be26 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: webrtc:10335 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/206645 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33214}