partial switch over to sp usage of shaders

gm/circles.cpp

 
 /*
  * Copyright 2012 Intel Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gm.h"
 #include "SkBlurDrawLooper.h"
 #include "SkBlurMask.h"
@@ skipping 49 matching lines @@
         fPaints.push_back(p);
         }
 
         {
         // AA with radial shader
         SkPaint p;
         p.setAntiAlias(true);
         SkPoint center = SkPoint::Make(SkIntToScalar(40), SkIntToScalar(40));
         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);
         }
 
         {
         // AA with blur
         SkPaint p;
         p.setAntiAlias(true);
         SkDrawLooper* shadowLooper =
             SkBlurDrawLooper::Create(SK_ColorBLUE,
                                      SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
@@ skipping 123 matching lines @@
     SkTArray<SkPaint> fPaints;
     SkTArray<SkMatrix> fMatrices;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new CircleGM; }
 static GMRegistry reg(MyFactory);
 
 }