switch patheffects over to sk_sp

include/effects/SkArcToPathEffect.h

Index: include/effects/SkArcToPathEffect.h
diff --git a/include/effects/SkArcToPathEffect.h b/include/effects/SkArcToPathEffect.h
index 4716ea125d5a098118e4cc274fca9f52c5d0997f..fcf4a3a5dc5cd1273971fbafdf159a53d2b98a1f 100644
--- a/include/effects/SkArcToPathEffect.h
+++ b/include/effects/SkArcToPathEffect.h
@@ -15,11 +15,11 @@ public:
     /** radius must be > 0 to have an effect. It specifies the distance from each corner
         that should be "rounded".
     */
-    static SkPathEffect* Create(SkScalar radius) {
+    static sk_sp<SkPathEffect> Make(SkScalar radius) {
         if (radius <= 0) {
             return NULL;
         }
-        return new SkArcToPathEffect(radius);
+        return sk_sp<SkPathEffect>(new SkArcToPathEffect(radius));
     }
 
     bool filterPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRect*) const override;