Pass RenderStyle / RenderObject by reference in more places

Source/core/frame/animation/CompositeAnimation.h

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 35 matching lines @@
 public:
     static PassRefPtr<CompositeAnimation> create(AnimationControllerPrivate* animationController)
     {
         return adoptRef(new CompositeAnimation(animationController));
     };
 
     ~CompositeAnimation();
 
     void clearRenderer();
 
-    PassRefPtr<RenderStyle> animate(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
+    PassRefPtr<RenderStyle> animate(RenderObject&, RenderStyle* currentStyle, RenderStyle& targetStyle);
     PassRefPtr<RenderStyle> getAnimatedStyle() const;
 
     double timeToNextService() const;
     double timeToNextEvent() const;
 
     AnimationControllerPrivate* animationController() const { return m_animationController; }
 
     bool hasAnimations() const  { return !m_transitions.isEmpty() || !m_keyframeAnimations.isEmpty(); }
 
     bool isAnimatingProperty(CSSPropertyID, bool acceleratedOnly, bool isRunningNow) const;
 
     PassRefPtr<KeyframeAnimation> getAnimationForProperty(CSSPropertyID) const;
 
     void overrideImplicitAnimations(CSSPropertyID);
     void resumeOverriddenImplicitAnimations(CSSPropertyID);
 
     void pauseAnimationsForTesting(double t);
     unsigned numberOfActiveAnimations() const;
 
 private:
     CompositeAnimation(AnimationControllerPrivate* animationController)
         : m_animationController(animationController)
     {
     }
 
-    void updateTransitions(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
-    void updateKeyframeAnimations(RenderObject*, RenderStyle* currentStyle, RenderStyle* targetStyle);
+    void updateTransitions(RenderObject&, RenderStyle* currentStyle, RenderStyle& targetStyle);
+    void updateKeyframeAnimations(RenderObject&, RenderStyle* currentStyle, RenderStyle& targetStyle);
 
     typedef HashMap<int, RefPtr<ImplicitAnimation> > CSSPropertyTransitionsMap;
     typedef HashMap<AtomicString, RefPtr<KeyframeAnimation> > AnimationNameMap;
 
     AnimationControllerPrivate* m_animationController;
     CSSPropertyTransitionsMap m_transitions;
     AnimationNameMap m_keyframeAnimations;
     Vector<AtomicString> m_keyframeAnimationOrderList;
 };
 
 } // namespace WebCore
 
 #endif // CompositeAnimation_h