Fix SkPicture path bound optimization to handle inverse filled paths.

BUG=crbug.com/229011
TEST=Picture unit test

Review URL: https://codereview.chromium.org/14819008

git-svn-id: http://skia.googlecode.com/svn/trunk@9031 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed