Revert of more shader-->sp conversions

gm/imagefiltersscaled.cpp

Index: gm/imagefiltersscaled.cpp
diff --git a/gm/imagefiltersscaled.cpp b/gm/imagefiltersscaled.cpp
index da4467882bccc773b2a2820051ca642c6231367b..7576ee1375edc213f5dc5372d906725b3d0c7f7f 100644
--- a/gm/imagefiltersscaled.cpp
+++ b/gm/imagefiltersscaled.cpp
@@ -145,9 +145,12 @@
         SkColor colors[2];
         colors[0] = SK_ColorWHITE;
         colors[1] = SK_ColorBLACK;
+        SkAutoTUnref<SkShader> shader(
+            SkGradientShader::CreateRadial(SkPoint::Make(x, y), radius, colors, nullptr, 2,
+                                           SkShader::kClamp_TileMode)
+        );
         SkPaint paint;
-        paint.setShader(SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr,
-                                                     2, SkShader::kClamp_TileMode));
+        paint.setShader(shader);
         canvas->drawCircle(x, y, radius, paint);
 
         return surface->newImageSnapshot();