more shader-->sp conversions

gm/rects.cpp

Index: gm/rects.cpp
diff --git a/gm/rects.cpp b/gm/rects.cpp
index 38108fed22a2e2bdae0e8b1faf7f1db38dd0daa4..6f4c75e22f066ae959f04c9078b2e28573b8f885 100644
--- a/gm/rects.cpp
+++ b/gm/rects.cpp
@@ -80,13 +80,9 @@ protected:
             SkPoint center = SkPoint::Make(SkIntToScalar(-5), SkIntToScalar(30));
             SkColor colors[] = { SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN };
             SkScalar pos[] = { 0, SK_ScalarHalf, SK_Scalar1 };
-            SkShader* s = SkGradientShader::CreateRadial(center,
-                                                         SkIntToScalar(20),
-                                                         colors,
-                                                         pos,
-                                                         SK_ARRAY_COUNT(colors),
-                                                         SkShader::kClamp_TileMode);
-            p.setShader(s)->unref();
+            p.setShader(SkGradientShader::MakeRadial(center, 20, colors, pos,
+                                                     SK_ARRAY_COUNT(colors),
+                                                     SkShader::kClamp_TileMode));
             fPaints.push_back(p);
         }