Initial error handling code

include/effects/SkKernel33MaskFilter.h

Index: include/effects/SkKernel33MaskFilter.h
diff --git a/include/effects/SkKernel33MaskFilter.h b/include/effects/SkKernel33MaskFilter.h
index 3404b73b1773a71350892c4e40897de3483f402f..1851adb293065aa69f50dfe221725881e098df94 100644
--- a/include/effects/SkKernel33MaskFilter.h
+++ b/include/effects/SkKernel33MaskFilter.h
@@ -11,6 +11,8 @@
 #include "SkMaskFilter.h"
 
 class SK_API SkKernel33ProcMaskFilter : public SkMaskFilter {
+    typedef SkMaskFilter INHERITED;
+
 public:
     SkKernel33ProcMaskFilter(unsigned percent256 = 256)
         : fPercent256(percent256) {}
@@ -29,13 +31,13 @@ protected:
 
 private:
     int fPercent256;
-
-    typedef SkMaskFilter INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 class SK_API SkKernel33MaskFilter : public SkKernel33ProcMaskFilter {
+    typedef SkKernel33ProcMaskFilter INHERITED;
+
 public:
     SkKernel33MaskFilter(const int coeff[3][3], int shift, int percent256 = 256)
             : SkKernel33ProcMaskFilter(percent256) {
@@ -55,8 +57,6 @@ private:
 
     SkKernel33MaskFilter(SkFlattenableReadBuffer& rb);
     virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
-
-    typedef SkKernel33ProcMaskFilter INHERITED;
 };
 
 #endif