Bring sk_sp to GrDrawContext

src/gpu/GrPathRenderingDrawContext.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrPathRenderingDrawContext_DEFINED
 #define GrPathRenderingDrawContext_DEFINED
 
 #include "GrDrawContext.h"
 
 class GrStencilAndCoverTextContext;
 
 class GrPathRenderingDrawContext : public GrDrawContext {
 public:
     void drawText(const GrClip&,  const GrPaint&, const SkPaint&,
                   const SkMatrix& viewMatrix, const char text[], size_t byteLength,
                   SkScalar x, SkScalar y, const SkIRect& clipBounds) override;
     void drawPosText(const GrClip&, const GrPaint&, const SkPaint&,
                      const SkMatrix& viewMatrix, const char text[], size_t byteLength,
                      const SkScalar pos[], int scalarsPerPosition,
                      const SkPoint& offset, const SkIRect& clipBounds) override;
     void drawTextBlob(const GrClip&, const SkPaint&,
                       const SkMatrix& viewMatrix, const SkTextBlob*,
                       SkScalar x, SkScalar y,
                       SkDrawFilter*, const SkIRect& clipBounds) override;
 protected:
-    GrPathRenderingDrawContext(GrContext* ctx, GrDrawingManager* mgr, GrRenderTarget* rt,
+    GrPathRenderingDrawContext(GrContext* ctx, GrDrawingManager* mgr, sk_sp<GrRenderTarget> rt,
                                const SkSurfaceProps* surfaceProps, GrAuditTrail* at,
                                GrSingleOwner* so)
-        : INHERITED(ctx, mgr, rt, surfaceProps, at, so) {}
+        : INHERITED(ctx, mgr, std::move(rt), surfaceProps, at, so) {}
 
 private:
     SkAutoTDelete<GrStencilAndCoverTextContext> fStencilAndCoverTextContext;
 
     friend class GrDrawingManager; // for ctor
 
     typedef GrDrawContext INHERITED;
 };
 
 #endif