Clean up GrDrawOpAtlas

Change-Id: I18dea851fa950231c4106e2e049e74a678a03df2
Reviewed-on: https://skia-review.googlesource.com/110380
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
1 file changed