Change SkShader;asFragmentProcessor signature to no longer take skpaint\grcolor*

src/core/SkPictureShader.h

Index: src/core/SkPictureShader.h
diff --git a/src/core/SkPictureShader.h b/src/core/SkPictureShader.h
index 31a60fd9e275be901c0bc86c680d7306f6908476..6249e41e375b0e81c287a2b004388793504eccff 100644
--- a/src/core/SkPictureShader.h
+++ b/src/core/SkPictureShader.h
@@ -30,9 +30,10 @@ public:
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkPictureShader)
 
-    bool asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix& viewM, const SkMatrix*,
-                             GrColor*, GrProcessorDataManager*,
-                             GrFragmentProcessor**) const override;
+#if SK_SUPPORT_GPU
+    const GrFragmentProcessor* asFragmentProcessor(GrContext*, const SkMatrix& viewM,
+        const SkMatrix*, SkFilterQuality, GrProcessorDataManager*) const override;
+#endif
 
 protected:
     SkPictureShader(SkReadBuffer&);