fix associated warnings (at least on gcc 4.0.1) git-svn-id: http://skia.googlecode.com/svn/trunk@129 2bbb7eff-a529-9590-31e7-b0007b416f81
but has some problems: (1) it generates T-vertices; (2) it only works with right-handed outer contours; (3) The sort and search are inefficient. git-svn-id: http://skia.googlecode.com/svn/trunk@119 2bbb7eff-a529-9590-31e7-b0007b416f81