Goal is to initialize peerconnections in Chromium using this based field trial config until a proper config that doesn't rely on the global field trial string can be used (https://crrev.com/c/4936314). Change-Id: I3d006e2445ccc4880b73b564c8ad4408242d3696 Bug: None Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/323621 Reviewed-by: Björn Terelius <terelius@webrtc.org> Reviewed-by: Emil Lundmark <lndmrk@webrtc.org> Commit-Queue: Jeremy Leconte <jleconte@google.com> Cr-Commit-Position: refs/heads/main@{#40941}