Oilpan: fix build after r193843.

Source/core/animation/Keyframe.h

 // 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.
 
 #ifndef Keyframe_h
 #define Keyframe_h
 
 #include "core/animation/AnimationEffect.h"
 #include "core/animation/AnimationNode.h"
 #include "core/animation/PropertyHandle.h"
@@ skipping 10 matching lines @@
 class Keyframe : public RefCountedWillBeGarbageCollectedFinalized<Keyframe> {
 public:
     virtual ~Keyframe() { }
 
     void setOffset(double offset) { m_offset = offset; }
     double offset() const { return m_offset; }
 
     void setComposite(AnimationEffect::CompositeOperation composite) { m_composite = composite; }
     AnimationEffect::CompositeOperation composite() const { return m_composite; }
 
-    void setEasing(PassRefPtrWillBeRawPtr<TimingFunction> easing) { m_easing = easing; }
+    void setEasing(PassRefPtr<TimingFunction> easing) { m_easing = easing; }
     TimingFunction& easing() const { return *m_easing; }
 
     static bool compareOffsets(const RefPtrWillBeMember<Keyframe>& a, const RefPtrWillBeMember<Keyframe>& b)
     {
         return a->offset() < b->offset();
     }
 
     virtual PropertyHandleSet properties() const = 0;
 
     virtual PassRefPtrWillBeRawPtr<Keyframe> clone() const = 0;
@@ skipping 55 matching lines @@
     }
 
     double m_offset;
     AnimationEffect::CompositeOperation m_composite;
     RefPtr<TimingFunction> m_easing;
 };
 
 } // namespace blink
 
 #endif // Keyframe_h