shape ops work in progress

git-svn-id: http://skia.googlecode.com/svn/trunk@7836 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/CubicUtilities.h b/experimental/Intersection/CubicUtilities.h
index abfb433..3f52a94 100644
--- a/experimental/Intersection/CubicUtilities.h
+++ b/experimental/Intersection/CubicUtilities.h
@@ -30,6 +30,7 @@
 int find_cubic_inflections(const Cubic& src, double tValues[]);
 bool rotate(const Cubic& cubic, int zero, int index, Cubic& rotPath);
 void sub_divide(const Cubic& src, double t1, double t2, Cubic& dst);
+void sub_divide(const Cubic& , const _Point& a, const _Point& d, double t1, double t2, _Point [2]);
 _Point top(const Cubic& , double startT, double endT);
 void xy_at_t(const Cubic& , double t, double& x, double& y);
 _Point xy_at_t(const Cubic& , double t);