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

samplecode/SampleTiling.cpp

Index: samplecode/SampleTiling.cpp
===================================================================
--- samplecode/SampleTiling.cpp	(revision 11108)
+++ samplecode/SampleTiling.cpp	(working copy)
@@ -21,6 +21,7 @@
 // effects
 #include "SkGradientShader.h"
 #include "SkUnitMappers.h"
+#include "SkBlurMask.h"
 #include "SkBlurDrawLooper.h"
 
 static void makebm(SkBitmap* bm, SkBitmap::Config config, int w, int h) {
@@ -66,8 +67,9 @@
     SkBlurDrawLooper    fLooper;
 public:
     TilingView()
-            : fLooper(SkIntToScalar(1), SkIntToScalar(2), SkIntToScalar(2),
-                      0x88000000) {
+            : fLooper(0x88000000, 
+                      SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(1)),
+                      SkIntToScalar(2), SkIntToScalar(2)) {
         fTextPicture = new SkPicture();
         for (size_t i = 0; i < SK_ARRAY_COUNT(gConfigs); i++) {
             makebm(&fTexture[i], gConfigs[i], gWidth, gHeight);