bug: we ignored maskfilter in spriteblitter case
Bug: skia:
Change-Id: I2c9423396a7a9ed3b81cd86e3a5edebbf34538db
Reviewed-on: https://skia-review.googlesource.com/96120
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Reed <reed@google.com>