data-equivalent

third_party/WebKit/Source/core/animation/css/CSSTransitionData.h

Index: third_party/WebKit/Source/core/animation/css/CSSTransitionData.h
diff --git a/third_party/WebKit/Source/core/animation/css/CSSTransitionData.h b/third_party/WebKit/Source/core/animation/css/CSSTransitionData.h
index 5bbac4fb0768ada677f736b45c11dbeb40db2465..95be54ced38ada07f446f618620f0626b82b9d4e 100644
--- a/third_party/WebKit/Source/core/animation/css/CSSTransitionData.h
+++ b/third_party/WebKit/Source/core/animation/css/CSSTransitionData.h
@@ -8,6 +8,7 @@
 #include <memory>
 #include "core/CSSPropertyNames.h"
 #include "core/animation/css/CSSTimingData.h"
+#include "core/style/DataEquivalency.h"
 #include "platform/wtf/PtrUtil.h"
 #include "platform/wtf/Vector.h"
 
@@ -78,6 +79,11 @@ class CSSTransitionData final : public CSSTimingData {
   Vector<TransitionProperty> property_list_;
 };
 
+inline bool DataEquivalent(const CSSTransitionData& a,
+                           const CSSTransitionData& b) {
+  return a.TransitionsMatchForStyleRecalc(b);
+}
+
 }  // namespace blink
 
 #endif  // CSSTransitionData_h