The video engine MapCodecs function returned an empty list of codecs when errors occured, which caused crashes downstream. This created issues with diagnosing errors caused by PT redesign. Bug: webrtc:360058654 Change-Id: I0b5bdc9f95814ac4cfb99f749075990c3077e7a6 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/370420 Reviewed-by: Henrik Boström <hbos@webrtc.org> Commit-Queue: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#43499}