This is a reland of commit 6326c9c201c7331d68c9beb0a93f6f6e21063cd2
Original change's description:
> Add an active ICE controller that wraps a legacy controller (#7/n)
>
> The wrapping ICE controller will allow existing ICE controller implementations to migrate to the active interface, and eventually deprecate the legacy interface.
>
> Follow-up CL has unit tests for P2PTransportChannel using the new wrapping controller.
>
> Bug: webrtc:14367, webrtc:14131
> Change-Id: I6c517449ff1e503e8268a7ef91afda793723fdeb
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/275302
> Reviewed-by: Per Kjellander <perkj@webrtc.org>
> Reviewed-by: Jonas Oreland <jonaso@webrtc.org>
> Commit-Queue: Sameer Vijaykar <samvi@google.com>
> Cr-Commit-Position: refs/heads/main@{#38130}
Bug: webrtc:14367, webrtc:14131
Change-Id: I5662595db1df8c06b3acac9b39749f236906fa7e
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/276044
Auto-Submit: Sameer Vijaykar <samvi@google.com>
Reviewed-by: Jonas Oreland <jonaso@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Commit-Queue: Per Kjellander <perkj@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38149}
52dd1a566a