Add animatable flag to CSSProperties.in

Source/core/css/CSSPropertyMetadata.h

Index: Source/core/css/CSSPropertyMetadata.h
diff --git a/Source/core/animation/css/CSSPropertyEquality.h b/Source/core/css/CSSPropertyMetadata.h
similarity index 52%
copy from Source/core/animation/css/CSSPropertyEquality.h
copy to Source/core/css/CSSPropertyMetadata.h
index 6cf1d214e12a9a3d0d9507c1297b9e3d3b53d2ff..f3e791c056328c6ecb739d5143c78adf3533ed35 100644
--- a/Source/core/animation/css/CSSPropertyEquality.h
+++ b/Source/core/css/CSSPropertyMetadata.h
@@ -2,20 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CSSPropertyEquality_h
-#define CSSPropertyEquality_h
+#ifndef CSSPropertyMetadata_h
+#define CSSPropertyMetadata_h
 
 #include "core/CSSPropertyNames.h"
 
 namespace blink {
 
-class RenderStyle;
-
-class CSSPropertyEquality {
+class CSSPropertyMetadata {
 public:
-    static bool propertiesEqual(CSSPropertyID, const RenderStyle&, const RenderStyle&);
+    static bool isAnimatableProperty(CSSPropertyID);
 };
 
 } // namespace blink
 
-#endif // CSSPropertyEquality_h
+#endif // CSSPropertyMetadata