Move SkShader::fLocalMatrix into SkShader constructor.

gm/convexpolyclip.cpp

Index: gm/convexpolyclip.cpp
diff --git a/gm/convexpolyclip.cpp b/gm/convexpolyclip.cpp
index a8037aaa542a6bd0c29a3efab41d32b5c24ec648..ed674340093ba2456b2d7dd2f5cf0e4d4a7da768 100644
--- a/gm/convexpolyclip.cpp
+++ b/gm/convexpolyclip.cpp
@@ -38,15 +38,15 @@ static SkBitmap make_bmp(int w, int h) {
                          SK_Scalar1};
 
     SkPaint paint;
-    paint.setShader(SkGradientShader::CreateRadial(
-                    pt, radius,
-                    colors, pos,
-                    SK_ARRAY_COUNT(colors),
-                    SkShader::kRepeat_TileMode))->unref();
     SkRect rect = SkRect::MakeWH(wScalar, hScalar);
     SkMatrix mat = SkMatrix::I();
     for (int i = 0; i < 4; ++i) {
-        paint.getShader()->setLocalMatrix(mat);
+        paint.setShader(SkGradientShader::CreateRadial(
+                        pt, radius,
+                        colors, pos,
+                        SK_ARRAY_COUNT(colors),
+                        SkShader::kRepeat_TileMode,
+                        NULL, 0, &mat))->unref();
         canvas.drawRect(rect, paint);
         rect.inset(wScalar / 8, hScalar / 8);
         mat.preTranslate(6 * wScalar, 6 * hScalar);