Reland of Accessibility: Ignore all anonymous blocks

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 482 matching lines @@
 
   // Check first if any of the common reasons cause this element to be ignored.
   // Then process other use cases that need to be applied to all the various
   // roles that AXLayoutObjects take on.
   AXObjectInclusion decision = defaultObjectInclusion(ignoredReasons);
   if (decision == IncludeObject)
     return false;
   if (decision == IgnoreObject)
     return true;
 
+  if (m_layoutObject->isAnonymousBlock())
+    return true;
+
   // If this element is within a parent that cannot have children, it should not
   // be exposed.
   if (isDescendantOfLeafNode()) {
     if (ignoredReasons)
       ignoredReasons->append(
           IgnoredReason(AXAncestorIsLeafNode, leafNodeAncestor()));
     return true;
   }
 
   if (roleValue() == IgnoredRole) {
@@ skipping 1930 matching lines @@
 
 bool AXLayoutObject::elementAttributeValue(
     const QualifiedName& attributeName) const {
   if (!m_layoutObject)
     return false;
 
   return equalIgnoringCase(getAttribute(attributeName), "true");
 }
 
 }  // namespace blink