Accessibility objects with layers shouldn't be ignored

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.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 564 matching lines @@
         if (ignoredReasons)
             ignoredReasons->append(IgnoredReason(AXAncestorDisallowsChild, treeAncestor));
         return true;
     }
 
     // A LayoutPart is an iframe element or embedded object element or something like
     // that. We don't want to ignore those.
     if (m_layoutObject->isLayoutPart())
         return false;
 
+    // Make sure renderers with layers stay in the tree.
+    if (getLayoutObject() && getLayoutObject()->hasLayer() && getNode() && getNode()->hasChildren())
+        return false;
+
     // find out if this element is inside of a label element.
     // if so, it may be ignored because it's the label for a checkbox or radio button
     AXObject* controlObject = correspondingControlForLabelElement();
     if (controlObject && controlObject->isCheckboxOrRadio() && controlObject->nameFromLabelElement()) {
         if (ignoredReasons) {
             HTMLLabelElement* label = labelElementContainer();
             if (label && label != getNode()) {
                 AXObject* labelAXObject = axObjectCache().getOrCreate(label);
                 ignoredReasons->append(IgnoredReason(AXLabelContainer, labelAXObject));
             }
@@ skipping 1907 matching lines @@
                     result.unite(labelRect);
                 }
             }
         }
     }
 
     return result;
 }
 
 } // namespace blink