Zhi Huang d745578229 Call SrtpTransport::EnableExternalAuth when enabling SDES.
When enabling SDES in BaseChannel, SrtpTransport::EnableExternalAuth
should be called if the external authenication is enabled which is
not covered by the current test set.

TBR=pthatcher@webrtc.org

Bug: webrtc:7013
Change-Id: Ibbf458516a521a488e8e3bb4a5a29fca70a627f5
Reviewed-on: https://webrtc-review.googlesource.com/27761
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Commit-Queue: Zhi Huang <zhihuang@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20960}
2017-11-30 23:47:30 +00:00
..
2017-10-30 18:08:29 +00:00
2017-10-30 18:08:29 +00:00
2017-10-30 18:08:29 +00:00
2017-10-30 18:08:29 +00:00
2017-10-30 18:08:29 +00:00
2017-10-30 18:08:29 +00:00
2017-10-30 18:08:29 +00:00
2017-11-15 13:31:51 +00:00
2017-10-30 18:08:29 +00:00