the rest was removed with:
5926e7c Remove unfinished VP9 alpha channel.
Change-Id: I0c1d92765e5334e1380ad027b069b401e4ae9b8f
		
	
the rest was removed with:
5926e7c Remove unfinished VP9 alpha channel.
Change-Id: I0c1d92765e5334e1380ad027b069b401e4ae9b8f