use rasterpipline for hq scaling

Bug: skia:
Change-Id: Ic67f869ba35be17d49d371bb7f3fa60b6b2e20ee
Reviewed-on: https://skia-review.googlesource.com/21105
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Reed <reed@google.com>
1 file changed