Limit lifetime of GrDrawContext objects

gm/texdata.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.
  */
 
 // This test only works with the GPU backend.
 
@@ skipping 21 matching lines @@
         return SkString("texdata");
     }
 
     SkISize onISize() override {
         return SkISize::Make(2*S, 2*S);
     }
 
     void onDraw(SkCanvas* canvas) override {
         GrRenderTarget* target = canvas->internal_private_accessTopLayerRenderTarget();
         GrContext* ctx = canvas->getGrContext();
-        GrDrawContext* drawContext = ctx ? ctx->drawContext() : nullptr;
+        SkAutoTUnref<GrDrawContext> drawContext(ctx ? ctx->drawContext() : nullptr);
         if (drawContext && target) {
             SkAutoTArray<SkPMColor> gTextureData((2 * S) * (2 * S));
             static const int stride = 2 * S;
             static const SkPMColor gray  = SkPackARGB32(0x40, 0x40, 0x40, 0x40);
             static const SkPMColor white = SkPackARGB32(0xff, 0xff, 0xff, 0xff);
             static const SkPMColor red   = SkPackARGB32(0x80, 0x80, 0x00, 0x00);
             static const SkPMColor blue  = SkPackARGB32(0x80, 0x00, 0x00, 0x80);
             static const SkPMColor green = SkPackARGB32(0x80, 0x00, 0x80, 0x00);
             static const SkPMColor black = SkPackARGB32(0x00, 0x00, 0x00, 0x00);
             for (int i = 0; i < 2; ++i) {
@@ skipping 86 matching lines @@
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new TexDataGM; }
 static GMRegistry reg(MyFactory);
 
 }
 
 #endif