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 e6f2b232ae064b9f8af1a7b1aace3b7c59413133..ddc9038f013b425dccc496331f8046ff154fdd75 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObject.h
+++ b/third_party/WebKit/Source/modules/accessibility/AXObject.h
@@ -30,6 +30,7 @@
 #ifndef AXObject_h
 #define AXObject_h
 
+#include "core/dom/AccessibleNode.h"
 #include "core/editing/VisiblePosition.h"
 #include "core/editing/markers/DocumentMarker.h"
 #include "core/inspector/protocol/Accessibility.h"
@@ -599,6 +600,12 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
 
   AXID axObjectID() const { return m_id; }
 
+  // Accessibility Object Model AccessibleNode interface
+  AccessibleNode* getAccessibleNode() const;
+  // Wrappers that retrieve either an ARIA attribute, or the equivalent
+  // Accessibility Object Model property, in that order.
+  const AtomicString& getAriaAttributeOrAOMProperty(AOMStringProperty) const;
+
   virtual void getSparseAXAttributes(AXSparseAttributeClient&) const {}
 
   // Determine subclass type.