Move SkShader::fLocalMatrix into SkShader constructor.

src/effects/gradients/SkGradientShaderPriv.h

Index: src/effects/gradients/SkGradientShaderPriv.h
diff --git a/src/effects/gradients/SkGradientShaderPriv.h b/src/effects/gradients/SkGradientShaderPriv.h
index 5dec665ea12e1e0318357860f7228408fc995b74..ed303952e70a1e59c8e1bba3811709f2edb45d27 100644
--- a/src/effects/gradients/SkGradientShaderPriv.h
+++ b/src/effects/gradients/SkGradientShaderPriv.h
@@ -99,7 +99,7 @@ public:
     };
 
 public:
-    SkGradientShaderBase(const Descriptor& desc);
+    SkGradientShaderBase(const Descriptor& desc, const SkMatrix* localMatrix = NULL);

[scroggo, 2014/04/23 19:01:28]

Does this function need a default param, or will it always be called passing a
value from a factory?

     virtual ~SkGradientShaderBase();
 
     // The cache is initialized on-demand when getCache16/32 is called.