The new type PriorityValue is a strong 16-bit integer matching RFC 8831 requirements that can be built from a Priority enum. The value is now propagated and used by the SCTP transport, but enabling the feature still requires a field trial for now. Bug: webrtc:42225365 Change-Id: I56c9f48744c70999a8c2d01415a08a0b6761df4b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/357941 Commit-Queue: Florent Castelli <orphis@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42695}