switch patheffects over to sk_sp

include/effects/SkDiscretePathEffect.h

Index: include/effects/SkDiscretePathEffect.h
diff --git a/include/effects/SkDiscretePathEffect.h b/include/effects/SkDiscretePathEffect.h
index a49e2d89a7c7ed60d6735418dff85753cb803bd5..78d4516ee6feb9c859f4397fb9ec3c63dcd0072e 100644
--- a/include/effects/SkDiscretePathEffect.h
+++ b/include/effects/SkDiscretePathEffect.h
@@ -29,9 +29,13 @@ public:
                           they can pass in a different seedAssist to get a
                           different set of path segments.
     */
+    static sk_sp<SkPathEffect> Make(SkScalar segLength, SkScalar dev, uint32_t seedAssist = 0);
+
+#ifdef SK_SUPPORT_LEGACY_PATHEFFECT_PTR
     static SkPathEffect* Create(SkScalar segLength, SkScalar deviation, uint32_t seedAssist = 0) {
-        return new SkDiscretePathEffect(segLength, deviation, seedAssist);
+        return Make(segLength, deviation, seedAssist).release();
     }
+#endif
 
     virtual bool filterPath(SkPath* dst, const SkPath& src,
                             SkStrokeRec*, const SkRect*) const override;