* DCC = DataChannelController.
* Consolidate steps to set the mid and transport name. They're now
set at the same time and without a separate PostTask.
* Transport sink is now consistently set in DCC
* Order of notifications for setting up the transport is now the same
regardless of the first time the transport is being set or if it's
being replaced.
* Made set_data_channel_transport() private.
Bug: webrtc:11547
Change-Id: I39e89c6e269e6f06d55981d7944678bf23c8817a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/300562
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39859}
2ec6a6c578