sk_sp for gpu.

include/gpu/effects/GrXfermodeFragmentProcessor.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrXfermodeFragmentProcessor_DEFINED
 #define GrXfermodeFragmentProcessor_DEFINED
 
 #include "SkXfermode.h"
 
 class GrFragmentProcessor;
 
 namespace GrXfermodeFragmentProcessor {
     /** The color input to the returned processor is treated as the src and the passed in processor
         is the dst. */
-    const GrFragmentProcessor* CreateFromDstProcessor(const GrFragmentProcessor* dst,
-                                                      SkXfermode::Mode mode);
+    sk_sp<GrFragmentProcessor> MakeFromDstProcessor(sk_sp<GrFragmentProcessor> dst,
+                                                    SkXfermode::Mode mode);
 
     /** The color input to the returned processor is treated as the dst and the passed in processor
         is the src. */
-    const GrFragmentProcessor* CreateFromSrcProcessor(const GrFragmentProcessor* src,
-                                                      SkXfermode::Mode mode);
+    sk_sp<GrFragmentProcessor> MakeFromSrcProcessor(sk_sp<GrFragmentProcessor> src,
+                                                    SkXfermode::Mode mode);
 
     /** Takes the input color, which is assumed to be unpremultiplied, passes it as an opaque color
         to both src and dst. The outputs of a src and dst are blended using mode and the original
         input's alpha is applied to the blended color to produce a premul output. */
-    const GrFragmentProcessor* CreateFromTwoProcessors(const GrFragmentProcessor* src,
-                                                       const GrFragmentProcessor* dst,
-                                                       SkXfermode::Mode mode);
+    sk_sp<GrFragmentProcessor> MakeFromTwoProcessors(sk_sp<GrFragmentProcessor> src,
+                                                     sk_sp<GrFragmentProcessor> dst,
+                                                     SkXfermode::Mode mode);
 };
 
 #endif