Revert of Make GrDrawState and GrPaint take GrEffect* instead of GrEffectRef*.

src/effects/gradients/SkTwoPointRadialGradient.cpp

Index: src/effects/gradients/SkTwoPointRadialGradient.cpp
diff --git a/src/effects/gradients/SkTwoPointRadialGradient.cpp b/src/effects/gradients/SkTwoPointRadialGradient.cpp
index 3507c891c0677ec8081360e35d5d0d210c5b5d05..e3d89960c65f1c95621ef8aef4f4b46c356cc503 100644
--- a/src/effects/gradients/SkTwoPointRadialGradient.cpp
+++ b/src/effects/gradients/SkTwoPointRadialGradient.cpp
@@ -712,7 +712,7 @@
 
 bool SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint& paint,
                                            const SkMatrix* localMatrix, GrColor* grColor,
-                                           GrEffect** grEffect)  const {
+                                           GrEffectRef** grEffect)  const {
     SkDEBUGFAIL("Should not call in GPU-less build");
     return false;
 }