Simplify drawloopers and drawfilters. This allows the canvas to keep its
promise that const SkPaint& stay const (so we don't have bugs if a const paint
is referenced from two threads in pictures)



git-svn-id: http://skia.googlecode.com/svn/trunk@1074 2bbb7eff-a529-9590-31e7-b0007b416f81
9 files changed