working on initial winding for cubics

src/pathops/SkPathOpsConic.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPathOpsConic_DEFINED
 #define SkPathOpsConic_DEFINED
 
@@ skipping 91 matching lines @@
             SkScalar* weight) const;
 
     static SkDPoint SubDivide(const SkPoint pts[kPointCount], SkScalar weight,
                               const SkDPoint& a, const SkDPoint& c,
                               double t1, double t2, SkScalar* newWeight) {
         SkDConic conic;
         conic.set(pts, weight);
         return conic.subDivide(a, c, t1, t2, newWeight);
     }
 
-    SkDPoint top(double startT, double endT) const;
+    SkDPoint top(double startT, double endT, double* topT) const;
 
     // utilities callable by the user from the debugger when the implementation code is linked in
     void dump() const;
     void dumpID(int id) const;
     void dumpInner() const;
 };
 
 
 #endif