sk_sp for gpu.

include/core/SkShader.h

Index: include/core/SkShader.h
diff --git a/include/core/SkShader.h b/include/core/SkShader.h
index 33ac8db6bcd0f5c945d666ff94cec96253b1b9e3..1f80ea1c09e7c1d596bfd7b626dbb1a3b128ec4a 100644
--- a/include/core/SkShader.h
+++ b/include/core/SkShader.h
@@ -310,7 +310,7 @@ public:
 
     virtual bool asACompose(ComposeRec*) const { return false; }
 
-
+#if SK_SUPPORT_GPU
     /**
      *  Returns a GrFragmentProcessor that implements the shader for the GPU backend. NULL is
      *  returned if there is no GPU implementation.
@@ -324,11 +324,12 @@ public:
      *  The returned GrFragmentProcessor should expect an unpremultiplied input color and
      *  produce a premultiplied output.
      */
-    virtual const GrFragmentProcessor* asFragmentProcessor(GrContext*,
+    virtual sk_sp<GrFragmentProcessor> asFragmentProcessor(GrContext*,
                                                            const SkMatrix& viewMatrix,
                                                            const SkMatrix* localMatrix,
                                                            SkFilterQuality,
                                                            SkSourceGammaTreatment) const;
+#endif
 
     /**
      *  If the shader can represent its "average" luminance in a single color, return true and