Initial skeleton of Accessibility Object Model Phase 1

third_party/WebKit/Source/modules/accessibility/AXObject.h

Index: third_party/WebKit/Source/modules/accessibility/AXObject.h
diff --git a/third_party/WebKit/Source/modules/accessibility/AXObject.h b/third_party/WebKit/Source/modules/accessibility/AXObject.h
index 090f8f1b11988f0313a68ee8fbcc919c77f2b0c4..ba2a8b753aad792e3ca55e7e36ecbe67d8dc9b2b 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObject.h
+++ b/third_party/WebKit/Source/modules/accessibility/AXObject.h
@@ -34,6 +34,7 @@
 #include "core/editing/markers/DocumentMarker.h"
 #include "core/inspector/protocol/Accessibility.h"
 #include "modules/ModulesExport.h"
+#include "modules/accessibility/AccessibleNode.h"
 #include "platform/geometry/FloatQuad.h"
 #include "platform/geometry/LayoutRect.h"
 #include "platform/graphics/Color.h"
@@ -599,6 +600,15 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
 
   AXID axObjectID() const { return m_id; }
 
+  // Accessibility Object Model AccessibleNode interface
+  AccessibleNode* getAccessibleNode() const { return m_accessibleNode; }
+  void setAccessibleNode(AccessibleNode* wrapper) {
+    m_accessibleNode = wrapper;
+  }
+  // Wrappers that retrieve either an Accessibility Object Model property
+  // or an ARIA attribute, checking in that order.
+  const AtomicString& getAomPropertyOrAriaAttribute(AomStringProperty) const;
+
   virtual void getSparseAXAttributes(AXSparseAttributeClient&) const {}
 
   // Determine subclass type.
@@ -1078,6 +1088,8 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
 
   mutable Member<AXObject> m_parent;
 
+  Member<AccessibleNode> m_accessibleNode;
+
   // The following cached attribute values (the ones starting with m_cached*)
   // are only valid if m_lastModificationCount matches
   // AXObjectCacheImpl::modificationCount().