Hook up style invalidation for CSS Paint API.

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 "wtf/RefPtr.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
 class CSSCustomPropertyDeclaration;
 
-class CSSVariableParser {
+class CORE_EXPORT CSSVariableParser {
 public:
     static bool containsValidVariableReferences(CSSParserTokenRange);
 
     static CSSCustomPropertyDeclaration* parseDeclarationValue(const AtomicString&, CSSParserTokenRange);
 
     static bool isValidVariableName(const CSSParserToken&);
     static bool isValidVariableName(const String&);
 };
 
 } // namespace blink
 
 #endif // CSSVariableParser_h