Revert of Revert of stop calling SkScalarDiv

gm/imagefiltersscaled.cpp

Index: gm/imagefiltersscaled.cpp
diff --git a/gm/imagefiltersscaled.cpp b/gm/imagefiltersscaled.cpp
index 4dcf7535da03556a7ad7fdd570e82a49fc9a86b6..9a80964a0e6e595777d60cb0c30a1634cc1ed4aa 100644
--- a/gm/imagefiltersscaled.cpp
+++ b/gm/imagefiltersscaled.cpp
@@ -134,8 +134,7 @@
                     canvas->scale(SkScalarInvert(RESIZE_FACTOR),
                                   SkScalarInvert(RESIZE_FACTOR));
                 }
-                canvas->drawCircle(r.centerX(), r.centerY(),
-                                   SkScalarDiv(r.width()*2, SkIntToScalar(5)), paint);
+                canvas->drawCircle(r.centerX(), r.centerY(), r.width()*2/5, paint);
                 canvas->restore();
                 canvas->translate(r.width() * scales[j].fX + margin, 0);
             }