Fix accessible touch exploration inside of iframes.

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 1094 matching lines @@
             if (obj->style()->hasAppearance())
                 LayoutTheme::theme().addVisualOverflow(*obj, r);
             result.unite(r);
         }
     }
     return result;
 }
 
 AXObject* AXObject::elementAccessibilityHitTest(const IntPoint& point) const
 {
-    // Check if there are any mock elements or child frames that need to be handled.
+    // Check if there are any mock elements that need to be handled.
     for (const auto& child : m_children) {
         if (child->isMockObject() && child->elementRect().contains(point))
             return child->elementAccessibilityHitTest(point);
-
-        if (child->isWebArea()) {
-            FrameView* frameView = child->documentFrameView();
-            if (frameView)
-                return child->accessibilityHitTest(IntPoint(point - frameView->frameRect().location()));
-        }
     }
 
     return const_cast<AXObject*>(this);
 }
 
 const AXObject::AXObjectVector& AXObject::children()
 {
     updateChildrenIfNecessary();
 
     return m_children;
@@ skipping 555 matching lines @@
 
 DEFINE_TRACE(AXObject)
 {
     visitor->trace(m_children);
     visitor->trace(m_parent);
     visitor->trace(m_cachedLiveRegionRoot);
     visitor->trace(m_axObjectCache);
 }
 
 } // namespace blink