zhihuang e50658de85 Create the DtlsTransportInternal
DtlsTransportInternal is an internal interface that does DTLS.
The DtlsTransportChannel will inherit from this class instead of the
TransportChannelImpl so that the ICE-related methods can be separated.

Once the DtlsTransportChannl inherits from this class. It would be
renamed as DtlsTransport.

BUG=none

Review-Url: https://codereview.webrtc.org/2597053002
Cr-Commit-Position: refs/heads/master@{#15888}
2017-01-03 19:34:12 +00:00
..
2016-09-29 11:12:51 +00:00
2017-01-03 19:34:12 +00:00
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Name: WebRTC
URL: http://www.webrtc.org
Version: 90
License: BSD
License File: LICENSE

Description:
WebRTC provides real time voice and video processing
functionality to enable the implementation of 
PeerConnection/MediaStream.

Third party code used in this project is described 
in the file LICENSE_THIRD_PARTY.