Update SkModeColorFilter to support an input FP.
This change relies on the Xfermode updates in the prior CL
(http://review.skia.org/299703) to render properly, and requires
slightly different blending behavior in the compose FP which
necessitated a new ComposeBehavior enum.
Eventually we would like to settle on a universal ComposeBehavior which
works well for all call sites, but that will be its own fairly
disruptive change. This work will be tracked at skia:10457.
Commit-Queue: John Stiles <email@example.com>
Reviewed-by: Brian Salomon <firstname.lastname@example.org>
Reviewed-by: Brian Osman <email@example.com>
7 files changed