Re-land: Initial skeleton of Accessibility Object Model Phase 1

third_party/WebKit/Source/core/dom/ElementRareData.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 24 matching lines @@
 #include "core/dom/ResizeObservation.h"
 #include "core/dom/ResizeObserver.h"
 #include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 struct SameSizeAsElementRareData : NodeRareData {
   LayoutSize sizeForResizing;
   IntSize scrollOffset;
   void* pointers[2];
-  Member<void*> members[13];
+  Member<void*> members[14];
 };
 
 CSSStyleDeclaration& ElementRareData::ensureInlineCSSStyleDeclaration(
     Element* ownerElement) {
   if (!m_cssomWrapper)
     m_cssomWrapper = new InlineCSSStyleDeclaration(ownerElement);
   return *m_cssomWrapper;
 }
 
 InlineStylePropertyMap& ElementRareData::ensureInlineStylePropertyMap(
@@ skipping 21 matching lines @@
 DEFINE_TRACE_AFTER_DISPATCH(ElementRareData) {
   visitor->trace(m_dataset);
   visitor->trace(m_classList);
   visitor->trace(m_shadow);
   visitor->trace(m_attributeMap);
   visitor->trace(m_attrNodeList);
   visitor->trace(m_elementAnimations);
   visitor->trace(m_cssomWrapper);
   visitor->trace(m_cssomMapWrapper);
   visitor->trace(m_pseudoElementData);
+  visitor->trace(m_accessibleNode);
   visitor->trace(m_v0CustomElementDefinition);
   visitor->trace(m_customElementDefinition);
   visitor->trace(m_intersectionObserverData);
   visitor->trace(m_resizeObserverData);
   NodeRareData::traceAfterDispatch(visitor);
 }
 
 DEFINE_TRACE_WRAPPERS_AFTER_DISPATCH(ElementRareData) {
   if (m_attrNodeList.get()) {
     for (auto& attr : *m_attrNodeList) {
       visitor->traceWrappersWithManualWriteBarrier(attr);
     }
   }
   visitor->traceWrappersWithManualWriteBarrier(m_shadow);
   visitor->traceWrappersWithManualWriteBarrier(m_attributeMap);
   visitor->traceWrappersWithManualWriteBarrier(m_dataset);
   visitor->traceWrappersWithManualWriteBarrier(m_classList);
+  visitor->traceWrappersWithManualWriteBarrier(m_accessibleNode);
   visitor->traceWrappersWithManualWriteBarrier(m_intersectionObserverData);
   NodeRareData::traceWrappersAfterDispatch(visitor);
 }
 
 static_assert(sizeof(ElementRareData) == sizeof(SameSizeAsElementRareData),
               "ElementRareData should stay small");
 
 }  // namespace blink