Implement crop rect for the dilate and erode (morphology) filters. This provoked some cleanup on the GPU side: apply_morphology() now deals with SkBitmaps, rather than GrTextures. There's still a clear opportunity for more refactoring between the two filters.
Note: this adds some test cases to the morphology GM, so it will require a rebaseline.
R=bsalomon@google.com, reed@google.com
Review URL: https://codereview.chromium.org/23892011
git-svn-id: http://skia.googlecode.com/svn/trunk@11313 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed
