Fix texture domain clipping assertion. It is OK to have a degenerate domain. Review URL: https://codereview.appspot.com/6812101
Fix texture domain clipping assertion. It is OK to have a degenerate domain.
Review URL: https://codereview.appspot.com/6812101

csulmone/skia,csulmone/skia,csulmone/skia,csulmone/skia