remove older version of cubic->coeff

src/utils/SkPatchUtils.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPatchUtils.h"
 
 #include "SkColorPriv.h"
@@ skipping 30 matching lines @@
     
     /**
      * Receives the 4 control points of the cubic bezier.
      */
     FwDCubicEvaluator(SkPoint a, SkPoint b, SkPoint c, SkPoint d) {
         fPoints[0] = a;
         fPoints[1] = b;
         fPoints[2] = c;
         fPoints[3] = d;
         
-        SkScalar cx[4], cy[4];
-        SkGetCubicCoeff(fPoints, cx, cy);
-        fCoefs[0].set(cx[0], cy[0]);
-        fCoefs[1].set(cx[1], cy[1]);
-        fCoefs[2].set(cx[2], cy[2]);
-        fCoefs[3].set(cx[3], cy[3]);
+        SkCubicToCoeff(fPoints, fCoefs);
         
         this->restart(1);
     }
     
     explicit FwDCubicEvaluator(const SkPoint points[4])  {
         memcpy(fPoints, points, 4 * sizeof(SkPoint));
         
-        SkScalar cx[4], cy[4];
-        SkGetCubicCoeff(fPoints, cx, cy);
-        fCoefs[0].set(cx[0], cy[0]);
-        fCoefs[1].set(cx[1], cy[1]);
-        fCoefs[2].set(cx[2], cy[2]);
-        fCoefs[3].set(cx[3], cy[3]);
+        SkCubicToCoeff(fPoints, fCoefs);
         
         this->restart(1);
     }
     
     /**
      * Restarts the forward differences evaluator to the first value of t = 0.
      */
     void restart(int divisions)  {
         fDivisions = divisions;
         SkScalar h  = 1.f / fDivisions;
@@ skipping 252 matching lines @@
                 data->fIndices[i + 4] = data->fIndices[i + 2];
                 data->fIndices[i + 5] = (x + 1) * stride + y;
             }
             v = SkScalarClampMax(v + 1.f / lodY, 1);
         }
         u = SkScalarClampMax(u + 1.f / lodX, 1);
     }
     return true;
 
 }