Do some minor pre cleanup work before converting all xfermodes to XPs.
authoregdaniel <egdaniel@google.com>
Wed, 14 Jan 2015 16:05:11 +0000 (08:05 -0800)
committerCommit bot <commit-bot@chromium.org>
Wed, 14 Jan 2015 16:05:11 +0000 (08:05 -0800)
commit38cd055215acbeb8671e6bf5dcbfc926bd9e98cd
treeaf0ed65c2d24c23a442e6673caf46c23865f6f0c
parentb47bba7c77782a9ee9e7d67a4b9c68050263e68a
Do some minor pre cleanup work before converting all xfermodes to XPs.

BUG=skia:

Review URL: https://codereview.chromium.org/853543003
include/core/SkXfermode.h
src/core/SkXfermode.cpp
src/effects/SkXfermodeImageFilter.cpp