Initial error handling code

include/effects/SkLightingImageFilter.h

Index: include/effects/SkLightingImageFilter.h
diff --git a/include/effects/SkLightingImageFilter.h b/include/effects/SkLightingImageFilter.h
index 9c90cd949bc2f94718befdadf6d945f37dbc7c30..4d95d8bdf62d8693e79901902c941d087eb0a01c 100644
--- a/include/effects/SkLightingImageFilter.h
+++ b/include/effects/SkLightingImageFilter.h
@@ -49,6 +49,8 @@ public:
 class SkLight;
 
 class SK_API SkLightingImageFilter : public SkImageFilter {
+    typedef SkImageFilter INHERITED;
+
 public:
     static SkImageFilter* CreateDistantLitDiffuse(const SkPoint3& direction,
         SkColor lightColor, SkScalar surfaceScale, SkScalar kd,
@@ -73,6 +75,7 @@ public:
     ~SkLightingImageFilter();
 
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_UTILS()
 
 protected:
     SkLightingImageFilter(SkLight* light,
@@ -85,7 +88,6 @@ protected:
     SkScalar surfaceScale() const { return fSurfaceScale; }
 
 private:
-    typedef SkImageFilter INHERITED;
     SkLight* fLight;
     SkScalar fSurfaceScale;
 };