Apply fix from #3739 to quads and cubics as well
Fixes http://code.google.com/p/chromium/issues/detail?id=125249
Review URL: https://codereview.appspot.com/6137046

git-svn-id: http://skia.googlecode.com/svn/trunk@3786 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed