Use new is*Element() helper functions in accessibility code

Source/core/accessibility/AXList.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/accessibility/AXList.h"
 
+#include "core/html/HTMLUListElement.h"
 #include "core/rendering/RenderObject.h"
 
 using namespace std;
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 AXList::AXList(RenderObject* renderer)
     : AXRenderObject(renderer)
@@ skipping 12 matching lines @@
 bool AXList::computeAccessibilityIsIgnored() const
 {
     return accessibilityIsIgnoredByDefault();
 }
 
 bool AXList::isUnorderedList() const
 {
     if (!m_renderer)
         return false;
 
-    Node* node = m_renderer->node();
-
     // The ARIA spec says the "list" role is supposed to mimic a UL or OL tag.
     // Since it can't be both, it's probably OK to say that it's an un-ordered list.
     // On the Mac, there's no distinction to the client.
     if (ariaRoleAttribute() == ListRole)
         return true;
 
-    return node && node->hasTagName(ulTag);
+    return isHTMLUListElement(m_renderer->node());
 }
 
 bool AXList::isOrderedList() const
 {
     if (!m_renderer)
         return false;
 
     // ARIA says a directory is like a static table of contents, which sounds like an ordered list.
     if (ariaRoleAttribute() == DirectoryRole)
         return true;
 
-    Node* node = m_renderer->node();
-    return node && node->hasTagName(olTag);
+    return isHTMLOListElement(m_renderer->node());
 }
 
 bool AXList::isDescriptionList() const
 {
     if (!m_renderer)
         return false;
 
-    Node* node = m_renderer->node();
-    return node && node->hasTagName(dlTag);
+    return isHTMLDListElement(m_renderer->node());
 }
 
 
 } // namespace WebCore