Blur refactoring

include/effects/SkBlurDrawLooper.h

Index: include/effects/SkBlurDrawLooper.h
===================================================================
--- include/effects/SkBlurDrawLooper.h	(revision 10932)
+++ include/effects/SkBlurDrawLooper.h	(working copy)
@@ -35,6 +35,10 @@
         kAll_BlurFlag               = 0x07
     };
 
+    SkBlurDrawLooper(SkColor color, SkScalar sigma, SkScalar dx, SkScalar dy,
+                     uint32_t flags = kNone_BlurFlag);
+
+    // DEPRECATED - radius-based
     SkBlurDrawLooper(SkScalar radius, SkScalar dx, SkScalar dy, SkColor color,
                      uint32_t flags = kNone_BlurFlag);
     virtual ~SkBlurDrawLooper();
@@ -64,6 +68,8 @@
     };
     State   fState;
 
+    void init(SkScalar sigma, SkScalar dx, SkScalar dy, SkColor color, uint32_t flags);
+
     typedef SkDrawLooper INHERITED;
 };