The spec says there should only be a single entry with no parameters. Bug: webrtc:9970 Change-Id: I8b55f10b8cb795021269827c6e0e9f12ab86a3c9 Reviewed-on: https://webrtc-review.googlesource.com/c/109588 Commit-Queue: Steve Anton <steveanton@webrtc.org> Reviewed-by: Steve Anton <steveanton@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25550}