To make Environment available for creating AudioDecoders to use propagated field trials
Bug: webrtc:356878416
Change-Id: I5dc4a3514d1182db6a7a5aa770b87daba529a5c8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/357442
Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42719}