tree b6191ece5c812e873bbc13fccf20fa2f1619c0d3
parent ee1a12a50327af649205f1d8b4a31edab3724277
author Arnaud Berry <arnaudberry@google.com> 1544747243 -0800
committer Arnaud Berry <arnaudberry@google.com> 1545259594 -0800

Turn MediaSourcesLiveData into a singleton managing the list of sources

Makes it possible to fetch the list from anywhere.

Test:  make -j64 RunCarMediaCommonRoboTests

Change-Id: Id6282aad696c4cb5a34bf82ebc3e3f1d48c665de