Bring sk_sp to GrDrawContext

src/gpu/GrRenderTarget.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 "GrRenderTarget.h"
 
@@ skipping 11 matching lines @@
     SkSafeUnref(fLastDrawTarget);
 }
 
 void GrRenderTarget::discard() {
     // go through context so that all necessary flushing occurs
     GrContext* context = this->getContext();
     if (!context) {
         return;
     }
 
-    SkAutoTUnref<GrDrawContext> drawContext(context->drawContext(this));
+    sk_sp<GrDrawContext> drawContext(context->drawContext(sk_ref_sp(this)));
     if (!drawContext) {
         return;
     }
 
     drawContext->discard();
 }
 
 void GrRenderTarget::flagAsNeedingResolve(const SkIRect* rect) {
     if (kCanResolve_ResolveType == getResolveType()) {
         if (rect) {
@@ skipping 59 matching lines @@
         SkSafeSetNull(fRenderTarget->fStencilAttachment);
         return false;
     }
     return true;
 }
 
 const GrGpu::MultisampleSpecs&
 GrRenderTargetPriv::getMultisampleSpecs(const GrStencilSettings& stencil) const {
     return fRenderTarget->getGpu()->getMultisampleSpecs(fRenderTarget, stencil);
 }