the clip, but whose edges do not (e.g. a curve). We used to overdraw a section
(and assert).
git-svn-id: http://skia.googlecode.com/svn/trunk@3809 2bbb7eff-a529-9590-31e7-b0007b416f81
already be clamped to 32K (our impl limit at the moment.)
add unittest to confirm this fix
git-svn-id: http://skia.googlecode.com/svn/trunk@3242 2bbb7eff-a529-9590-31e7-b0007b416f81