GitLab

Remove the MediaStatus struct and typemapping, and use mojom::MediaStatus
directly.

Also delete the MirroringMediaRouteController class which is no longer
used.

Change-Id: I92ee56c3c276000948340da2c7d85248041cbf28
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1747740Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: mark a. foltz <mfoltz@chromium.org>
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Cr-Commit-Position: refs/heads/master@{#686626}