Added a quick heuristic to determine which objects are the target of in-page links and stop ignorin…

third_party/WebKit/Source/modules/accessibility/AXObject.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 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 124 matching lines @@
 struct InternalRoleEntry {
   AccessibilityRole webcoreRole;
   const char* internalRoleName;
 };
 
 const InternalRoleEntry internalRoles[] = {
     {UnknownRole, "Unknown"},
     {AbbrRole, "Abbr"},
     {AlertDialogRole, "AlertDialog"},
     {AlertRole, "Alert"},
+    {AnchorRole, "Anchor"},
     {AnnotationRole, "Annotation"},
     {ApplicationRole, "Application"},
     {ArticleRole, "Article"},
     {AudioRole, "Audio"},
     {BannerRole, "Banner"},
     {BlockquoteRole, "Blockquote"},
     // TODO(nektar): Delete busy_indicator role. It's used nowhere.
     {BusyIndicatorRole, "BusyIndicator"},
     {ButtonRole, "Button"},
     {CanvasRole, "Canvas"},
@@ skipping 1557 matching lines @@
   role.split(' ', roleVector);
   for (const auto& child : roleVector) {
     if (roleSet->contains(child))
       return true;
   }
   return false;
 }
 
 bool AXObject::nameFromContents() const {
   switch (roleValue()) {
+    case AnchorRole:
     case ButtonRole:
     case CheckBoxRole:
     case DirectoryRole:
     case DisclosureTriangleRole:
     case HeadingRole:
     case LineBreakRole:
     case LinkRole:
     case ListBoxOptionRole:
     case ListItemRole:
     case MenuItemRole:
@@ skipping 41 matching lines @@
 }
 
 DEFINE_TRACE(AXObject) {
   visitor->trace(m_children);
   visitor->trace(m_parent);
   visitor->trace(m_cachedLiveRegionRoot);
   visitor->trace(m_axObjectCache);
 }
 
 }  // namespace blink