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

src/effects/SkLumaColorFilter.cpp

Index: src/effects/SkLumaColorFilter.cpp
diff --git a/src/effects/SkLumaColorFilter.cpp b/src/effects/SkLumaColorFilter.cpp
index ae8b9056451787f929b32f6b452a1f356602a0a8..4c90f3d4f4f0f5de8d57db0a00b3da0a103d25c1 100644
--- a/src/effects/SkLumaColorFilter.cpp
+++ b/src/effects/SkLumaColorFilter.cpp
@@ -121,7 +121,7 @@ private:
     }
 };
 
-GrEffectRef* SkLumaColorFilter::asNewEffect(GrContext*) const {
+GrEffect* SkLumaColorFilter::asNewEffect(GrContext*) const {
     return LumaColorFilterEffect::Create();
 }
 #endif