Stub for conic section max curvature

BUG=skia:
R=reed@google.com

Author: humper@google.com

Review URL: https://codereview.chromium.org/175193003

git-svn-id: http://skia.googlecode.com/svn/trunk@13542 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed