Ensure original parser context is used when parsing resolved var() references

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

 // Copyright 2015 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 CSSVariableParser_h
 #define CSSVariableParser_h
 
 #include "core/CoreExport.h"
 #include "core/css/parser/CSSParserTokenRange.h"
 #include "platform/heap/Handle.h"
 #include "platform/wtf/RefPtr.h"
 #include "platform/wtf/text/AtomicString.h"
 
 namespace blink {
 
 class CSSCustomPropertyDeclaration;
+class CSSParserContext;
 class CSSVariableReferenceValue;
 
 class CORE_EXPORT CSSVariableParser {
  public:
   static bool ContainsValidVariableReferences(CSSParserTokenRange);
 
   static CSSCustomPropertyDeclaration* ParseDeclarationValue(
       const AtomicString&,
       CSSParserTokenRange,
       bool is_animation_tainted);
   static CSSVariableReferenceValue* ParseRegisteredPropertyValue(
       CSSParserTokenRange,
+      const CSSParserContext&,
       bool require_var_reference,
       bool is_animation_tainted);
 
   static bool IsValidVariableName(const CSSParserToken&);
   static bool IsValidVariableName(const String&);
 };
 
 }  // namespace blink
 
 #endif  // CSSVariableParser_h