Revert of Revert of stop calling SkScalarDiv

src/gpu/GrPathUtils.cpp

Index: src/gpu/GrPathUtils.cpp
diff --git a/src/gpu/GrPathUtils.cpp b/src/gpu/GrPathUtils.cpp
index 2a906664f26c40d92784e2fd8a439c6bdadc9eca..3e2c3bfe6691655ebf4f6b56dea15d9c8e02af4b 100644
--- a/src/gpu/GrPathUtils.cpp
+++ b/src/gpu/GrPathUtils.cpp
@@ -29,8 +29,7 @@
             stretch = SkMaxScalar(stretch, mat.mapRadius(SK_Scalar1));
         }
     }
-    srcTol = SkScalarDiv(srcTol, stretch);
-    return srcTol;
+    return srcTol / stretch;
 }
 
 static const int MAX_POINTS_PER_CURVE = 1 << 10;
@@ -51,7 +50,7 @@
         // subdivide x = log4(d/tol) times. x subdivisions creates 2^(x)
         // points.
         // 2^(log4(x)) = sqrt(x);
-        SkScalar divSqrt = SkScalarSqrt(SkScalarDiv(d, tol));
+        SkScalar divSqrt = SkScalarSqrt(d / tol);
         if (((SkScalar)SK_MaxS32) <= divSqrt) {
             return MAX_POINTS_PER_CURVE;
         } else {
@@ -107,11 +106,11 @@
     if (d <= tol) {
         return 1;
     } else {
-        SkScalar divSqrt = SkScalarSqrt(SkScalarDiv(d, tol));
+        SkScalar divSqrt = SkScalarSqrt(d / tol);
         if (((SkScalar)SK_MaxS32) <= divSqrt) {
             return MAX_POINTS_PER_CURVE;
         } else {
-            int temp = SkScalarCeilToInt(SkScalarSqrt(SkScalarDiv(d, tol)));
+            int temp = SkScalarCeilToInt(SkScalarSqrt(d / tol));
             int pow2 = GrNextPow2(temp);
             // Because of NaNs & INFs we can wind up with a degenerate temp
             // such that pow2 comes out negative. Also, our point generator