Fix support for accessible action verbs and performing the default action.

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

 /*
  * Copyright (C) 2012, Google 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 667 matching lines @@
 
     return siblingWithAriaRole("menuitem", node());
 }
 
 Element* AXNodeObject::mouseButtonListener() const
 {
     Node* node = this->node();
     if (!node)
         return 0;
 
-    // check if our parent is a mouse button listener
     if (!node->isElementNode())
         node = node->parentElement();
 
     if (!node)
         return 0;
 
-    // FIXME: Do the continuation search like anchorElement does
     for (Element* element = toElement(node); element; element = element->parentElement()) {
-        if (element->getAttributeEventListener(EventTypeNames::click) || element->getAttributeEventListener(EventTypeNames::mousedown) || element->getAttributeEventListener(EventTypeNames::mouseup))
+        // It's a pretty common practice to put click listeners on the body or document, but that's
+        // almost never what the user wants when clicking on an accessible element.
+        if (isHTMLBodyElement(element))
+            break;
+
+        if (element->hasEventListeners(EventTypeNames::click) || element->hasEventListeners(EventTypeNames::mousedown) || element->hasEventListeners(EventTypeNames::mouseup) || element->hasEventListeners(EventTypeNames::DOMActivate))
             return element;
     }
 
     return 0;
 }
 
 AccessibilityRole AXNodeObject::remapAriaRoleDueToParent(AccessibilityRole role) const
 {
     // Some objects change their role based on their parent.
     // However, asking for the unignoredParent calls accessibilityIsIgnored(), which can trigger a loop.
@@ skipping 2043 matching lines @@
     return placeholder;
 }
 
 DEFINE_TRACE(AXNodeObject)
 {
     visitor->trace(m_node);
     AXObject::trace(visitor);
 }
 
 } // namespace blink