[androidkit] See-through face for CubeActivity

Paint both sides (two passes), and skip a face for inside visibility.

Change-Id: I138d790578c4ce30c7d4df9400485a983c1f9e95
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/414900
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Jorge Betancourt <jmbetancourt@google.com>
1 file changed