Move SkShader::fLocalMatrix into SkShader constructor.

gm/xfermodes2.cpp

Index: gm/xfermodes2.cpp
diff --git a/gm/xfermodes2.cpp b/gm/xfermodes2.cpp
index 1af59d2553b4c331262c2fa9d3cf2ce619e86d3b..2ccabc61cb6377797575bc19f6d86d4d45a33648 100644
--- a/gm/xfermodes2.cpp
+++ b/gm/xfermodes2.cpp
@@ -96,12 +96,12 @@ private:
         bg.allocN32Pixels(2, 2, true);
         memcpy(bg.getPixels(), kCheckData, sizeof(kCheckData));
 
-        fBG.reset(SkShader::CreateBitmapShader(bg,
-                                               SkShader::kRepeat_TileMode,
-                                               SkShader::kRepeat_TileMode));
         SkMatrix lm;
         lm.setScale(SkIntToScalar(16), SkIntToScalar(16));
-        fBG->setLocalMatrix(lm);
+        fBG.reset(SkShader::CreateBitmapShader(bg,
+                                               SkShader::kRepeat_TileMode,
+                                               SkShader::kRepeat_TileMode,
+                                               &lm));
 
         SkBitmap dstBmp;
         dstBmp.allocN32Pixels(kSize, kSize);