first attempt to plumb fast blur code into skia mask filter

include/effects/SkBlurMaskFilter.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkBlurMaskFilter_DEFINED
 #define SkBlurMaskFilter_DEFINED
 
@@ skipping 37 matching lines @@
         @param specular     coefficient for specular highlights (e.g. 8)
         @param blurRadius   amount to blur before applying lighting (e.g. 3)
         @return the emboss maskfilter
     */
     static SkMaskFilter* CreateEmboss(  const SkScalar direction[3],
                                         SkScalar ambient, SkScalar specular,
                                         SkScalar blurRadius);
 
     SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
 private:
+    
     SkBlurMaskFilter(); // can't be instantiated
 };
 
 #endif