Adds extra debugging to SkPathRef that can optionally be turned on in a release build.

This is pretty hacky but hopefully will be quite short-lived.
Review URL: https://codereview.appspot.com/6584074

git-svn-id: http://skia.googlecode.com/svn/trunk@5793 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed