Oilpan: Fix oilpan builds after r170720

Source/core/animation/StringKeyframe.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 StringKeyframe_h
 #define StringKeyframe_h
 
 #include "core/animation/AnimatableValue.h"
 #include "core/animation/Keyframe.h"
 
 namespace WebCore {
 
 class StringKeyframe : public Keyframe {
 public:
-    static PassRefPtr<StringKeyframe> create() { return adoptRef(new StringKeyframe); }
+    static PassRefPtrWillBeRawPtr<StringKeyframe> create()
+    {
+        return adoptRefWillBeNoop(new StringKeyframe);
+    }
     void setPropertyValue(CSSPropertyID property, const String& value)
     {
         m_propertyValues.add(property, value);
     }
     void clearPropertyValue(CSSPropertyID property) { m_propertyValues.remove(property); }
     String propertyValue(CSSPropertyID property) const
     {
         ASSERT(m_propertyValues.contains(property));
         return m_propertyValues.get(property);
     }
     virtual PropertySet properties() const OVERRIDE;
 
+    virtual void trace(Visitor*) OVERRIDE;
+
     class PropertySpecificKeyframe : public Keyframe::PropertySpecificKeyframe {
     public:
         PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, const String& value, AnimationEffect::CompositeOperation);
 
         const String& value() const { return m_value; }
 
-        virtual PassOwnPtr<Keyframe::PropertySpecificKeyframe> neutralKeyframe(double offset, PassRefPtr<TimingFunction> easing) const OVERRIDE FINAL;
-        virtual PassRefPtr<Interpolation> createInterpolation(CSSPropertyID, WebCore::Keyframe::PropertySpecificKeyframe* end) const OVERRIDE FINAL;
+        virtual PassOwnPtrWillBeRawPtr<Keyframe::PropertySpecificKeyframe> neutralKeyframe(double offset, PassRefPtr<TimingFunction> easing) const OVERRIDE FINAL;
+        virtual PassRefPtrWillBeRawPtr<Interpolation> createInterpolation(CSSPropertyID, WebCore::Keyframe::PropertySpecificKeyframe* end) const OVERRIDE FINAL;
+
+        virtual void trace(Visitor*) OVERRIDE;
+
     private:
         PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, const String& value);
 
-        virtual PassOwnPtr<Keyframe::PropertySpecificKeyframe> cloneWithOffset(double offset) const;
+        virtual PassOwnPtrWillBeRawPtr<Keyframe::PropertySpecificKeyframe> cloneWithOffset(double offset) const;
         virtual bool isStringPropertySpecificKeyframe() const OVERRIDE { return true; }
 
         String m_value;
     };
 
 private:
     StringKeyframe() { }
 
     StringKeyframe(const StringKeyframe& copyFrom);
 
     virtual PassRefPtrWillBeRawPtr<Keyframe> clone() const OVERRIDE;
-    virtual PassOwnPtr<Keyframe::PropertySpecificKeyframe> createPropertySpecificKeyframe(CSSPropertyID) const OVERRIDE;
+    virtual PassOwnPtrWillBeRawPtr<Keyframe::PropertySpecificKeyframe> createPropertySpecificKeyframe(CSSPropertyID) const OVERRIDE;
 
     virtual bool isStringKeyframe() const OVERRIDE { return true; }
 
     typedef HashMap<CSSPropertyID, String> PropertyValueMap;
     PropertyValueMap m_propertyValues;
 };
 
 typedef StringKeyframe::PropertySpecificKeyframe StringPropertySpecificKeyframe;
 
 }
 
 #endif