Fix for potential typedef issue

src/effects/SkBlurMaskFilter.cpp

Index: src/effects/SkBlurMaskFilter.cpp
diff --git a/src/effects/SkBlurMaskFilter.cpp b/src/effects/SkBlurMaskFilter.cpp
index 6a5a39778cb73a6b1bdeeaf62a221437da389c34..b90e707fd9dfb316812046be0b9ccae527efcc01 100644
--- a/src/effects/SkBlurMaskFilter.cpp
+++ b/src/effects/SkBlurMaskFilter.cpp
@@ -23,6 +23,8 @@
 #endif
 
 class SkBlurMaskFilterImpl : public SkMaskFilter {
+    typedef SkMaskFilter INHERITED;
+
 public:
     SkBlurMaskFilterImpl(SkScalar sigma, SkBlurMaskFilter::BlurStyle, uint32_t flags);
 
@@ -74,8 +76,6 @@ private:
         SkScalar xformedSigma = ignoreTransform ? fSigma : ctm.mapRadius(fSigma);
         return SkMinScalar(xformedSigma, kMAX_BLUR_SIGMA);
     }
-
-    typedef SkMaskFilter INHERITED;
 };
 
 const SkScalar SkBlurMaskFilterImpl::kMAX_BLUR_SIGMA = SkIntToScalar(128);