Revert of Revert of stop calling SkScalarDiv

src/core/SkPathMeasure.cpp

Index: src/core/SkPathMeasure.cpp
diff --git a/src/core/SkPathMeasure.cpp b/src/core/SkPathMeasure.cpp
index c963e9cf356df10868cf98be3daee42b03d2926a..a5dd84048c56c88334020f1a6d6907b54b918413 100644
--- a/src/core/SkPathMeasure.cpp
+++ b/src/core/SkPathMeasure.cpp
@@ -341,8 +341,7 @@
                 if (SK_Scalar1 == stopT) {
                     dst->quadTo(tmp0[3], tmp0[4]);
                 } else {
-                    SkChopQuadAt(&tmp0[2], tmp1, SkScalarDiv(stopT - startT,
-                                                         SK_Scalar1 - startT));
+                    SkChopQuadAt(&tmp0[2], tmp1, (stopT - startT) / (1 - startT));
                     dst->quadTo(tmp1[1], tmp1[2]);
                 }
             }
@@ -383,8 +382,7 @@
                 if (SK_Scalar1 == stopT) {
                     dst->cubicTo(tmp0[4], tmp0[5], tmp0[6]);
                 } else {
-                    SkChopCubicAt(&tmp0[3], tmp1, SkScalarDiv(stopT - startT,
-                                                        SK_Scalar1 - startT));
+                    SkChopCubicAt(&tmp0[3], tmp1, (stopT - startT) / (1 - startT));
                     dst->cubicTo(tmp1[1], tmp1[2], tmp1[3]);
                 }
             }