GitLab

Implement CastMediaController for the native Cast MRP, which will allow
controlling the media playback in flinging sessions.

Bug: 987474
Change-Id: I8a8909bb0f67efb71629a30ea9b206368b66482a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1625377Reviewed-by: Brandon Tolsch <btolsch@chromium.org>
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683023}