Add inherited flag to CSSProperties.in

Source/core/css/CSSPropertyMetadata.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSPropertyMetadata_h
 #define CSSPropertyMetadata_h
 
 #include "core/CSSPropertyNames.h"
 
 namespace blink {
 
 class CSSPropertyMetadata {
 public:
     static bool isAnimatableProperty(CSSPropertyID);
+    static bool isInheritedProperty(CSSPropertyID);
 };
 
 } // namespace blink
 
 #endif // CSSPropertyMetadata