Clean up accessibility enums for use in Chromium.

Source/core/accessibility/AccessibilityImageMapLink.cpp

Index: Source/core/accessibility/AccessibilityImageMapLink.cpp
diff --git a/Source/core/accessibility/AccessibilityImageMapLink.cpp b/Source/core/accessibility/AccessibilityImageMapLink.cpp
index 91a43e15394b03f6371014dd9733e0b3bfae919c..6c36cfdf8d120e080c6c54a604af8b3f2cc99aa5 100644
--- a/Source/core/accessibility/AccessibilityImageMapLink.cpp
+++ b/Source/core/accessibility/AccessibilityImageMapLink.cpp
@@ -72,13 +72,13 @@ AccessibilityObject* AccessibilityImageMapLink::parentObject() const
 AccessibilityRole AccessibilityImageMapLink::roleValue() const
 {
     if (!m_areaElement)
-        return WebCoreLinkRole;
+        return LinkRole;
 
     const AtomicString& ariaRole = getAttribute(roleAttr);
     if (!ariaRole.isEmpty())
         return AccessibilityObject::ariaRoleToWebCoreRole(ariaRole);
 
-    return WebCoreLinkRole;
+    return LinkRole;
 }
 
 Element* AccessibilityImageMapLink::actionElement() const