partial switch over to sp usage of shaders

gm/bitmaprect.cpp

-
 /*
  * Copyright 2011 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 "SkGraphics.h"
 #include "SkPath.h"
 #include "SkRegion.h"
 #include "SkShader.h"
 
 static void make_bitmap(SkBitmap* bitmap) {
     bitmap->allocN32Pixels(64, 64);
 
     SkCanvas canvas(*bitmap);
 
     canvas.drawColor(SK_ColorRED);
     SkPaint paint;
     paint.setAntiAlias(true);
     const SkPoint pts[] = { { 0, 0 }, { 64, 64 } };
     const SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE };
-    paint.setShader(SkGradientShader::CreateLinear(pts, colors, nullptr, 2,
-                                                   SkShader::kClamp_TileMode))->unref();
+    paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, 2,
+                                                 SkShader::kClamp_TileMode));
     canvas.drawCircle(32, 32, 32, paint);
 }
 
 class DrawBitmapRect2 : public skiagm::GM {
     bool fUseIRect;
 public:
     DrawBitmapRect2(bool useIRect) : fUseIRect(useIRect) {
     }
 
 protected:
@@ skipping 237 matching lines @@
 
 DEF_GM( return new DrawBitmapRect2(false); )
 DEF_GM( return new DrawBitmapRect2(true); )
 DEF_GM( return new DrawBitmapRect3(); )
 
 #ifndef SK_BUILD_FOR_ANDROID
 DEF_GM( return new DrawBitmapRect4(false); )
 DEF_GM( return new DrawBitmapRect4(true); )
 #endif