Web Spec and C++ version of setCodecPreferences are failable, as they return
an RTCError (in C++) or throw an InvalidModificationError (in Web Spec).
However, current Objective-C version of setCodecPreferences is not failable,
so callers cannot know if the operation succeeded or not.
Also, the current Objective-C version does not accept nil, which is not
spec-compliant. (Web Spec says if codecs is an empty list, set
transceiver.PreferredCodecs to codecs and abort these steps.)
Bug: webrtc:42226103, webrtc:42226230
Change-Id: Ib90f3e5b45fc959eeb92f623cf50efcb458a7478
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/352400
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42789}
e630a3d7ad