Oilpan: fix build after r196479.

Source/core/animation/EffectInputTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/animation/EffectInput.h"
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "core/animation/AnimationTestHelper.h"
@@ skipping 11 matching lines @@
 
 class AnimationEffectInputTest : public ::testing::Test {
 protected:
     AnimationEffectInputTest()
         : pageHolder(DummyPageHolder::create())
         , document(pageHolder->document())
         , element(document.createElement("foo", ASSERT_NO_EXCEPTION))
         , m_isolate(v8::Isolate::GetCurrent())
         , m_scope(m_isolate)
     {
-        document.documentElement()->appendChild(element);
+        document.documentElement()->appendChild(element.get());
     }
 
     OwnPtr<DummyPageHolder> pageHolder;
     Document& document;
     RefPtrWillBePersistent<Element> element;
     TrackExceptionState exceptionState;
     v8::Isolate* m_isolate;
 
 private:
     V8TestingScope m_scope;
@@ skipping 103 matching lines @@
     jsKeyframes.append(Dictionary(keyframe1, m_isolate, exceptionState));
     jsKeyframes.append(Dictionary(keyframe2, m_isolate, exceptionState));
     jsKeyframes.append(Dictionary(keyframe3, m_isolate, exceptionState));
 
     EffectInput::convert(element.get(), jsKeyframes, exceptionState);
     EXPECT_TRUE(exceptionState.hadException());
     EXPECT_EQ(InvalidModificationError, exceptionState.code());
 }
 
 }