Cleanup Macros arround static initializers for SkFlattenable.

This CL also removes an unused debugging function from the class
Review URL: https://codereview.appspot.com/5890043

git-svn-id: http://skia.googlecode.com/svn/trunk@3483 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/core/SkColorFilter.h b/include/core/SkColorFilter.h
index 97db5cc..2151106 100644
--- a/include/core/SkColorFilter.h
+++ b/include/core/SkColorFilter.h
@@ -118,7 +118,7 @@
     */
     static SkColorFilter* CreateLightingFilter(SkColor mul, SkColor add);
     
-    SK_DECLARE_FLATTENABLE_REGISTRAR()
+    SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
 protected:
     SkColorFilter() {}
     SkColorFilter(SkFlattenableReadBuffer& rb) : INHERITED(rb) {}