Correctly apply per-keyframe timing functions

Source/core/rendering/style/KeyframeList.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 40 matching lines @@
     void addProperty(CSSPropertyID prop) { m_properties.add(prop); }
     bool containsProperty(CSSPropertyID prop) const { return m_properties.contains(prop); }
     const HashSet<CSSPropertyID>& properties() const { return m_properties; }
 
     double key() const { return m_key; }
     void setKey(double key) { m_key = key; }
 
     const RenderStyle* style() const { return m_style.get(); }
     void setStyle(PassRefPtr<RenderStyle> style) { m_style = style; }
 
-    static TimingFunction* timingFunction(const RenderStyle*, const AtomicString& name);
+    static TimingFunction* timingFunction(const RenderStyle& keyframeStyle);
 
 private:
     double m_key;
     HashSet<CSSPropertyID> m_properties; // The properties specified in this keyframe.
     RefPtr<RenderStyle> m_style;
 };
 
 class KeyframeList {
 public:
     KeyframeList(RenderObject&, const AtomicString& animationName)
@@ skipping 20 matching lines @@
 
 private:
     AtomicString m_animationName;
     Vector<KeyframeValue> m_keyframes; // Kept sorted by key.
     HashSet<CSSPropertyID> m_properties; // The properties being animated.
 };
 
 } // namespace WebCore
 
 #endif // KeyframeList_h