Make consumeCustomIdent exclude css wide keywords

third_party/WebKit/Source/core/css/parser/CSSPropertyParserHelpers.h

 // Copyright 2016 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 CSSPropertyParserHelpers_h
 #define CSSPropertyParserHelpers_h
 
 #include "core/css/CSSValuePool.h"
 #include "core/css/parser/CSSParserMode.h"
 #include "core/css/parser/CSSParserTokenRange.h"
@@ skipping 50 matching lines @@
     return id == head || identMatches<tail...>(id);
 }
 
 template<CSSValueID... names> PassRefPtrWillBeRawPtr<CSSPrimitiveValue> consumeIdent(CSSParserTokenRange& range)
 {
     if (range.peek().type() != IdentToken || !identMatches<names...>(range.peek().id()))
         return nullptr;
     return cssValuePool().createIdentifierValue(range.consumeIncludingWhitespace().id());
 }
 
+static inline bool isCSSWideKeyword(const CSSValueID& id)
+{
+    return id == CSSValueInitial || id == CSSValueInherit || id == CSSValueUnset || id == CSSValueDefault;
+}
+
 } // namespace CSSPropertyParserHelpers
 
 } // namespace blink
 
 #endif // CSSPropertyParserHelpers_h