ActivityView: set surface on a background thread.

ActivityView shouldn't set the surface on the main thread, because it's
a binder call and causes jank. Instead it should delegate the call to a
background thread and let it do the work there.

Bug: 15752100

Change-Id: I6f2764c93dfb8f3e00d79f0e97d4a6688b6fdd8f
1 file changed