jumper, another batch of blend modes

Change-Id: I0c48ec80eee8b7c7e9fb980efa8ed1dad5ad9768
Reviewed-on: https://skia-review.googlesource.com/10924
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
4 files changed