Add crop rect support for SkDisplacementMapEffect (raster and GPU paths).
Covered by new test cases added to displacement GM (will require rebaseline).

R=bsalomon@google.com

Review URL: https://codereview.chromium.org/26531002

git-svn-id: http://skia.googlecode.com/svn/trunk/include@11782 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed