Add operator== to CSSTransitionData.

third_party/WebKit/Source/core/style/StyleRareNonInheritedData.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 298 matching lines @@
   return DataEquivalent(box_reflect_, o.box_reflect_);
 }
 
 bool StyleRareNonInheritedData::AnimationDataEquivalent(
     const StyleRareNonInheritedData& o) const {
   return DataEquivalent(animations_, o.animations_);
 }
 
 bool StyleRareNonInheritedData::TransitionDataEquivalent(
     const StyleRareNonInheritedData& o) const {
-  if (!transitions_ && !o.transitions_)
-    return true;
-  if (!transitions_ || !o.transitions_)
-    return false;
-  return transitions_->TransitionsMatchForStyleRecalc(*o.transitions_);
+  return DataEquivalent(transitions_, o.transitions_);
 }
 
 bool StyleRareNonInheritedData::ShapeOutsideDataEquivalent(
     const StyleRareNonInheritedData& o) const {
   return DataEquivalent(shape_outside_, o.shape_outside_);
 }
 
 bool StyleRareNonInheritedData::ClipPathDataEquivalent(
     const StyleRareNonInheritedData& o) const {
   return DataEquivalent(clip_path_, o.clip_path_);
 }
 
 }  // namespace blink