Push sigma-based blur interface into our GMs/benches/tests/samplecode

src/animator/SkDrawBlur.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 SkDrawBlur_DEFINED
 #define SkDrawBlur_DEFINED
 
 #include "SkPaintParts.h"
 #include "SkBlurMaskFilter.h"
 
 class SkDrawBlur : public SkDrawMaskFilter {
     DECLARE_DRAW_MEMBER_INFO(Blur);
     SkDrawBlur();
-    virtual SkMaskFilter* getMaskFilter();
+    virtual SkMaskFilter* getMaskFilter() SK_OVERRIDE;
 protected:
-    SkScalar radius;
-    int /*SkBlurMaskFilter::BlurStyle*/ blurStyle;
+    SkScalar fSigma;
+    int /*SkBlurMaskFilter::BlurStyle*/ fBlurStyle;
+
+    typedef SkDrawMaskFilter INHERITED;
 };
 
 #endif // SkDrawBlur_DEFINED