update the nearly_integral calculation to be (a) faster, and (b) to correctly
identify that the AA granularity is 1/4 of a pixel, not 1/16 (along an axis).



git-svn-id: http://skia.googlecode.com/svn/trunk@3919 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed