Remove GrEffect::CreateEffectRef and GrEffect::AutoEffectRef.

src/effects/SkAlphaThresholdFilter.cpp

Index: src/effects/SkAlphaThresholdFilter.cpp
diff --git a/src/effects/SkAlphaThresholdFilter.cpp b/src/effects/SkAlphaThresholdFilter.cpp
index 0bc906dae9995920d9ba8d09d132bbf81b4f8c54..b375c88c11d8b2f2cade918941ea39fcbc083cc6 100644
--- a/src/effects/SkAlphaThresholdFilter.cpp
+++ b/src/effects/SkAlphaThresholdFilter.cpp
@@ -60,11 +60,10 @@ public:
                                GrTexture* maskTexture,
                                float innerThreshold,
                                float outerThreshold) {
-        AutoEffectUnref effect(SkNEW_ARGS(AlphaThresholdEffect, (texture,
-                                                                 maskTexture,
-                                                                 innerThreshold,
-                                                                 outerThreshold)));
-        return CreateEffectRef(effect);
+        return SkNEW_ARGS(AlphaThresholdEffect, (texture,
+                                                 maskTexture,
+                                                 innerThreshold,
+                                                 outerThreshold));
     }
 
     virtual ~AlphaThresholdEffect() {};