tree bd4e5984ba17164b9c73e3b6133d79b94703b368
parent 21b59085349f99de20f9aa4213c5e2b44fbd7e25
author Joshua Brown <keyboardr@google.com> 1535156936 -0700
committer Joshua Brown <keyboardr@google.com> 1535487998 -0700

Add MediaSourceViewModel.

Adds a ViewModel for obtaining and selecting MediaSources. SimpleMediaSource is a copy of MediaSource, and will be renamed once all references to the old class are removed. ActiveMediaControllerLiveData is a heavily modified copy of ActiveMediaSourceManager. MediaSourcesLiveData is modeled after MediaSourcesManager.

Test: Full tests for LiveDatas and ViewModels in this CL. Also fixes test breakage in PlaybackViewModelTest.
Change-Id: Icd8072c4c9aaa618a08f96afb39977f10a655775