Use nextafter instead of nexttoward to avoid using long double calculation.

src/core/SkScaleToSides.h

Index: src/core/SkScaleToSides.h
diff --git a/src/core/SkScaleToSides.h b/src/core/SkScaleToSides.h
index c3fa172f672588d27c29e95436c0bc0320d05f3c..9e761ab36101e22c0f43824652304f54dc7c57cc 100644
--- a/src/core/SkScaleToSides.h
+++ b/src/core/SkScaleToSides.h
@@ -45,10 +45,8 @@ public:
 
             // If newMaxRadius forces the total over the limit, then it needs to be
             // reduced by one ULP to be less than limit - newMinRadius.
-            // Note: nexttowardf is a c99 call and should be std::nexttoward, but this is not

[mtklein, 2016/01/22 17:44:32]

The same note does still apply to nextafterf vs. std::nextafter.

[herb_g, 2016/01/22 17:52:34]

Done.

-            // implemented in the ARM compiler.
             if (newMaxRadius + newMinRadius > limit) {
-                newMaxRadius = nexttowardf(newMaxRadius, 0.0);
+                newMaxRadius = nextafterf(newMaxRadius, 0.0f);
             }
             *maxRadius = newMaxRadius;
         }