179f96de7e
To allow various VideoBitrateAllocators to use propagated rather than global field trials This relands the https://webrtc-review.googlesource.com/c/src/+/349920 where patchset#1 is identical to the original change, patchset#2 undoes (postpones) the expectation downstream propagates the Environment too. Bug: webrtc:42220378 Change-Id: I4a9a32bb0926a875d37f3ba19dd5309e97546553 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/350364 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Philip Eliasson <philipel@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42298}