Bring sk_sp to GrDrawContext

gm/bigrrectaaeffect.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.
  */
 
 #include "gm.h"
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
@@ skipping 38 matching lines @@
     SkISize onISize() override { return SkISize::Make(fWidth, fHeight); }
 
     void onDraw(SkCanvas* canvas) override {
         GrRenderTarget* rt = canvas->internal_private_accessTopLayerRenderTarget();
         GrContext* context = rt ? rt->getContext() : nullptr;
         if (!context) {
             skiagm::GM::DrawGpuOnlyMessage(canvas);
             return;
         }
 
-        SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(rt));
+        sk_sp<GrDrawContext> drawContext(context->drawContext(sk_ref_sp(rt)));
         if (!drawContext) {
             return;
         }
 
         SkPaint paint;
 
         int y = kPad;
         int x = kPad;
         static const GrPrimitiveEdgeType kEdgeTypes[] = {
             kFillAA_GrProcessorEdgeType,
@@ skipping 59 matching lines @@
 
 DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRect(SkRect::MakeIWH(kSize, kSize)), "rect"); )
 DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize, kSize)), "circle"); )
 DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeOval(SkRect::MakeIWH(kSize - 1, kSize - 10)), "ellipse"); )
 // The next two have small linear segments between the corners
 DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRectXY(SkRect::MakeIWH(kSize - 1, kSize - 10), kSize/2.f - 10.f, kSize/2.f - 10.f), "circular_corner"); )
 DEF_GM( return new BigRRectAAEffectGM (SkRRect::MakeRectXY(SkRect::MakeIWH(kSize - 1, kSize - 10), kSize/2.f - 10.f, kSize/2.f - 15.f), "elliptical_corner"); )
 
 }
 #endif