Enable accessible name of a control to include multiple <label> elements.

third_party/WebKit/Source/core/dom/LiveNodeList.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef LiveNodeList_h
 #define LiveNodeList_h
 
+#include "core/CoreExport.h"
 #include "core/dom/LiveNodeListBase.h"
 #include "core/dom/NodeList.h"
 #include "core/html/CollectionItemsCache.h"
 #include "core/html/CollectionType.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class Element;
 
-class LiveNodeList : public NodeList, public LiveNodeListBase {
+class CORE_EXPORT LiveNodeList : public NodeList, public LiveNodeListBase {
     USING_GARBAGE_COLLECTED_MIXIN(LiveNodeList);
 public:
     LiveNodeList(ContainerNode& ownerNode, CollectionType collectionType, NodeListInvalidationType invalidationType, NodeListRootType rootType = NodeListRootType::Node)
         : LiveNodeListBase(ownerNode, rootType, invalidationType, collectionType) { }
 
     unsigned length() const final;
     Element* item(unsigned offset) const final;
     virtual bool elementMatches(const Element&) const = 0;
 
     void invalidateCache(Document* oldDocument = 0) const final;
@@ skipping 18 matching lines @@
 
 inline void LiveNodeList::invalidateCacheForAttribute(const QualifiedName* attrName) const
 {
     if (!attrName || shouldInvalidateTypeOnAttributeChange(invalidationType(), *attrName))
         invalidateCache();
 }
 
 } // namespace blink
 
 #endif // LiveNodeList_h