and ensure consistent behavior on empty input. BUG=webrtc:15755 Change-Id: Id70ab5d55251b4dd10eed8ab67ea8e75545a7a8d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/332740 Reviewed-by: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Philipp Hancke <phancke@microsoft.com> Cr-Commit-Position: refs/heads/main@{#41502}