Pass RenderStyle / RenderObject by reference in more places

Source/core/frame/animation/AnimationBase.cpp

Index: Source/core/frame/animation/AnimationBase.cpp
diff --git a/Source/core/frame/animation/AnimationBase.cpp b/Source/core/frame/animation/AnimationBase.cpp
index 20af3310a8f7802b3ef7169ff9fcfa26e09d2456..2377a11a886c91b52cc67558aa378f7739343f3f 100644
--- a/Source/core/frame/animation/AnimationBase.cpp
+++ b/Source/core/frame/animation/AnimationBase.cpp
@@ -40,7 +40,7 @@ using namespace std;
 
 namespace WebCore {
 
-AnimationBase::AnimationBase(const CSSAnimationData* transition, RenderObject* renderer, CompositeAnimation* compAnim)
+AnimationBase::AnimationBase(const CSSAnimationData* transition, RenderObject& renderer, CompositeAnimation* compAnim)
     : m_animState(AnimationStateNew)
     , m_isAccelerated(false)
     , m_transformFunctionListValid(false)
@@ -50,7 +50,7 @@ AnimationBase::AnimationBase(const CSSAnimationData* transition, RenderObject* r
     , m_requestedStartTime(0)
     , m_totalDuration(-1)
     , m_nextIterationDuration(-1)
-    , m_object(renderer)
+    , m_object(&renderer)
     , m_animation(const_cast<CSSAnimationData*>(transition))
     , m_compAnim(compAnim)
 {