Initial error handling code

include/effects/SkComposeImageFilter.h

Index: include/effects/SkComposeImageFilter.h
diff --git a/include/effects/SkComposeImageFilter.h b/include/effects/SkComposeImageFilter.h
index 45f530b392bbdbd36b479f53042b24145d734766..7d5f6f28992b184c5fb20a0273b0f164f8965b3f 100644
--- a/include/effects/SkComposeImageFilter.h
+++ b/include/effects/SkComposeImageFilter.h
@@ -11,6 +11,8 @@
 #include "SkImageFilter.h"
 
 class SK_API SkComposeImageFilter : public SkImageFilter {
+    typedef SkImageFilter INHERITED;
+
 public:
     SkComposeImageFilter(SkImageFilter* outer, SkImageFilter* inner) : INHERITED(outer, inner) {}
     virtual ~SkComposeImageFilter();
@@ -23,9 +25,6 @@ protected:
     virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
                                SkBitmap* result, SkIPoint* loc) SK_OVERRIDE;
     virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) SK_OVERRIDE;
-
-private:
-    typedef SkImageFilter INHERITED;
 };
 
 #endif