partial switch over to sp usage of shaders

gm/constcolorprocessor.cpp

-
 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This test only works with the GPU backend.
 
 #include "gm.h"
@@ skipping 24 matching lines @@
         return SkString("const_color_processor");
     }
 
     SkISize onISize() override {
         return SkISize::Make(kWidth, kHeight);
     }
 
     void onOnceBeforeDraw() override {
         SkColor colors[] = { 0xFFFF0000, 0x2000FF00, 0xFF0000FF};
         SkPoint pts[] = { SkPoint::Make(0, 0), SkPoint::Make(kRectSize, kRectSize) };
-        fShader.reset(SkGradientShader::CreateLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
-                       SkShader::kClamp_TileMode));
+        fShader = SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
+                                               SkShader::kClamp_TileMode);
     }
 
     void onDraw(SkCanvas* canvas) override {
         GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget();
         if (nullptr == rt) {
             return;
         }
         GrContext* context = rt->getContext();
         if (nullptr == context) {
             skiagm::GM::DrawGpuOnlyMessage(canvas);
@@ skipping 114 matching lines @@
                         x += maxW + kPad;
                         maxW = 0;
                     }
                 }
             }
         }
     }
 
 private:
     // Use this as a way of generating and input FP
-    SkAutoTUnref<SkShader>      fShader;
+    sk_sp<SkShader> fShader;
 
     static const SkScalar       kPad;
     static const SkScalar       kRectSize;
     static const int            kWidth  = 820;
     static const int            kHeight = 500;
 
     typedef GM INHERITED;
 };
 
 const SkScalar ConstColorProcessor::kPad = 10.f;
 const SkScalar ConstColorProcessor::kRectSize = 20.f;
 
 DEF_GM(return new ConstColorProcessor;)
 }
 
 #endif