Revert of Revert of stop calling SkScalarDiv

src/effects/SkDashPathEffect.cpp

Index: src/effects/SkDashPathEffect.cpp
diff --git a/src/effects/SkDashPathEffect.cpp b/src/effects/SkDashPathEffect.cpp
index 5296f972d5cef104458b59755192e4378b72acfa..62e6771356ff5112024a9a92b026436e74f34b77 100644
--- a/src/effects/SkDashPathEffect.cpp
+++ b/src/effects/SkDashPathEffect.cpp
@@ -248,7 +248,7 @@
                 len2 -= clampedInitialDashLength; // skip initial partial empty
             }
         }
-        int numMidPoints = SkScalarFloorToInt(SkScalarDiv(len2, fIntervalLength));
+        int numMidPoints = SkScalarFloorToInt(len2 / fIntervalLength);
         results->fNumPoints += numMidPoints;
         len2 -= numMidPoints * fIntervalLength;
         bool partialLast = false;