This CL adds a field trial that enables the EncoderBitrateAdjuster to allow higher target bitrate if we are not network constrained. We still don't allow the bitrate to go higher than the average target media rate though. Bug: webrtc:10155 Change-Id: Id5995070aa0cbe84b9305a422279141b38664bb1 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/132717 Commit-Queue: Erik Språng <sprang@webrtc.org> Reviewed-by: Ilya Nikolaevskiy <ilnik@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27627}