Factory methods for heap-allocated SkMaskFilter objects.

include/effects/SkStippleMaskFilter.h

Index: include/effects/SkStippleMaskFilter.h
diff --git a/include/effects/SkStippleMaskFilter.h b/include/effects/SkStippleMaskFilter.h
index ee32ae1fe35ed856210a1ee3587573e99b1a6acc..ad7f767e495421b7e6c41265566f086d3520d7a9 100644
--- a/include/effects/SkStippleMaskFilter.h
+++ b/include/effects/SkStippleMaskFilter.h
@@ -15,7 +15,8 @@
  */
 class SK_API SkStippleMaskFilter : public SkMaskFilter {
 public:
-    SkStippleMaskFilter() : INHERITED() {
+    static SkStippleMaskFilter* Create() {
+        return SkNEW(SkStippleMaskFilter);
     }
 
     virtual bool filterMask(SkMask* dst, const SkMask& src,
@@ -35,6 +36,12 @@ protected:
     : SkMaskFilter(buffer) {
     }
 
+#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
+public:
+#endif
+    SkStippleMaskFilter() : INHERITED() {
+    }
+
 private:
     typedef SkMaskFilter INHERITED;
 };