Oilpan: Replace RefPtrs to Document in core/{accessibility,animation,fetch} with Oilpan transition …

Source/core/animation/EffectInputTest.cpp

Index: Source/core/animation/EffectInputTest.cpp
diff --git a/Source/core/animation/EffectInputTest.cpp b/Source/core/animation/EffectInputTest.cpp
index 34dbb56162a7a0d5a04b3e7616b61af7e2a233f8..b515765cec72356bc85769a49a47e50432b3aab9 100644
--- a/Source/core/animation/EffectInputTest.cpp
+++ b/Source/core/animation/EffectInputTest.cpp
@@ -27,7 +27,7 @@ protected:
     {
     }
 
-    RefPtr<Document> document;
+    RefPtrWillBePersistent<Document> document;
     RefPtrWillBePersistent<Element> element;
     TrackExceptionState exceptionState;
     v8::Isolate* m_isolate;