Generate CSSPropertyEquality instead of using hand-updated file.

third_party/WebKit/Source/core/style/DataEquivalency.h

Index: third_party/WebKit/Source/core/style/DataEquivalency.h
diff --git a/third_party/WebKit/Source/core/style/DataEquivalency.h b/third_party/WebKit/Source/core/style/DataEquivalency.h
index b9b49370ea5779eca964ddbc66171e8958b58cda..193c362f9c4506b8dbf94d4f2a3914ffec55ee74 100644
--- a/third_party/WebKit/Source/core/style/DataEquivalency.h
+++ b/third_party/WebKit/Source/core/style/DataEquivalency.h
@@ -49,6 +49,11 @@ bool dataEquivalent(const OwnPtr<T>& a, const OwnPtr<T>& b)
     return dataEquivalent(a.get(), b.get());
 }
 
+template <typename T>
+bool dataEquivalent(const T a, const T b)

[Timothy Loh, 2016/05/24 05:38:35]

const T&?

+{
+    return a == b;
+}
 } // namespace blink
 
 #endif // DataEquivalency_h