Fix MediaStubActivity Layout

Change the mediaplayer layout to evenly distribute the
three SurfaceViews so that all three are always visible
regardless of screen size. The videos do stretch a bit
weird, but the tests still work.

Remove the manual setting of width and height and the
deprecated push buffers setting in MediaStubActivity.

Change-Id: I40025b3a24dae7acdd9a3a3ed7d85484b09fe9e5
3 files changed