sk_sp for gpu.

src/gpu/effects/GrDitherEffect.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDitherEffect_DEFINED
 #define GrDitherEffect_DEFINED
 
 #include "GrTypes.h"
 #include "GrTypesPriv.h"
+#include "SkRefCnt.h"
 
 class GrFragmentProcessor;
 
 namespace GrDitherEffect {
     /**
      * Creates an effect that dithers the resulting color to an RGBA8 framebuffer
      */
-    GrFragmentProcessor* Create();
+    sk_sp<GrFragmentProcessor> Make();
 };
 
 #endif