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

gm/texteffects.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkFlattenableBuffers.h"
 #include "SkLayerRasterizer.h"
 #include "SkBlurMaskFilter.h"
 
 static void r0(SkLayerRasterizer* rast, SkPaint& p) {
-    p.setMaskFilter(SkBlurMaskFilter::Create(SkIntToScalar(3),
-                                             SkBlurMaskFilter::kNormal_BlurStyle))->unref();
+    p.setMaskFilter(SkBlurMaskFilter::Create(SkBlurMaskFilter::kNormal_BlurStyle,
+                                             SkFloatToScalar(2.23205f)))->unref();
     rast->addLayer(p, SkIntToScalar(3), SkIntToScalar(3));
 
     p.setMaskFilter(NULL);
     p.setStyle(SkPaint::kStroke_Style);
     p.setStrokeWidth(SK_Scalar1);
     rast->addLayer(p);
 
     p.setAlpha(0x11);
     p.setStyle(SkPaint::kFill_Style);
     p.setXfermodeMode(SkXfermode::kSrc_Mode);
@@ skipping 182 matching lines @@
     }
 
 private:
     typedef skiagm::GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static skiagm::GM* MyFactory(void*) { return new TextEffectsGM; }
 static skiagm::GMRegistry reg(MyFactory);