Fix infinite recursion in cubic->quad conversion, also attempt to detect nearly flat cubics early.

Review URL: http://codereview.appspot.com/6448100/

THIS WILL REQUIRE REBASELINING OF CONVEXPATHS GM.



git-svn-id: http://skia.googlecode.com/svn/trunk@4917 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed