Refactored out need to pass property ID in background list parsing.

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIAnimationName.cpp

 // Copyright 2017 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.
 
 #include "core/css/properties/CSSPropertyAPIAnimationName.h"
 
 #include "core/css/parser/CSSParserLocalContext.h"
 #include "core/css/parser/CSSPropertyParserHelpers.h"
 #include "core/css/properties/CSSPropertyAnimationNameUtils.h"
 
 class CSSParserContext;
 
 namespace blink {
 
 const CSSValue* CSSPropertyAPIAnimationName::parseSingleValue(
     CSSParserTokenRange& range,
     const CSSParserContext& context,
     const CSSParserLocalContext& local_context) {
   // Allow quoted name if this is an alias property.
   return CSSPropertyParserHelpers::ConsumeCommaSeparatedList(
+      CSSPropertyParserHelpers::Optimise::kNo,
       CSSPropertyAnimationNameUtils::ConsumeAnimationName, range, &context,
       local_context.GetUseAliasParsing());
 }
 
 }  // namespace blink