more shader-->sp conversions

gm/verylargebitmap.cpp

 /*
  * Copyright 2012 Google 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 "SkCanvas.h"
 #include "SkGradientShader.h"
 #include "SkPath.h"
 #include "SkPictureRecorder.h"
 #include "SkSurface.h"
 
 static void draw(SkCanvas* canvas, int width, int height, SkColor colors[2]) {
     const SkPoint center = { SkIntToScalar(width)/2, SkIntToScalar(height)/2 };
     const SkScalar radius = 40;
-    SkShader* shader = SkGradientShader::CreateRadial(center, radius, colors, nullptr, 2,
-                                                      SkShader::kMirror_TileMode);
     SkPaint paint;
-    paint.setShader(shader)->unref();
+    paint.setShader(SkGradientShader::MakeRadial(center, radius, colors, nullptr, 2,
+                                                 SkShader::kMirror_TileMode));
     paint.setXfermodeMode(SkXfermode::kSrc_Mode);
     canvas->drawPaint(paint);
 }
 
 static SkImage* make_raster_image(int width, int height, SkColor colors[2]) {
     SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(width, height));
     draw(surface->getCanvas(), width, height, colors);
     return surface->newImageSnapshot();
 }
 
@@ skipping 84 matching lines @@
         // since it has a 64K limit on x,y coordinates... (but gpu should succeed)
         show_image(canvas, veryBig, small, colors, fProc);
     }
 
 private:
     typedef skiagm::GM INHERITED;
 };
 DEF_GM( return new VeryLargeBitmapGM(make_raster_image, "bitmap"); )
 DEF_GM( return new VeryLargeBitmapGM(make_picture_image, "_picture_image"); )