04e5b49827
This can be used to activate DTLS 1.2 through a command-line flag from Chromium later. BUG=chromium:428343 R=jiayl@webrtc.org, juberti@google.com Review URL: https://webrtc-codereview.appspot.com/54509004 Cr-Commit-Position: refs/heads/master@{#9328}