This is one step in getting rid of cricket::DtlsTransportState.. Bug: webrtc:12762 Change-Id: I65a6e72b587fd3dd6cdc1ce7fe201a2a9cfe936d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/218460 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33991}