Revert of more shader-->sp conversions

gm/imagefilterscropexpand.cpp

Index: gm/imagefilterscropexpand.cpp
diff --git a/gm/imagefilterscropexpand.cpp b/gm/imagefilterscropexpand.cpp
index 185bbde0a6628c7103a73b1c8fe9426f8303a51d..9ceab2036a6e667ec282e8dc68eebb2b226eab00 100644
--- a/gm/imagefilterscropexpand.cpp
+++ b/gm/imagefilterscropexpand.cpp
@@ -151,9 +151,12 @@
         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();