Implement computedRole and computedName (behind a flag)

Source/modules/accessibility/AXNodeObject.cpp

Index: Source/modules/accessibility/AXNodeObject.cpp
diff --git a/Source/modules/accessibility/AXNodeObject.cpp b/Source/modules/accessibility/AXNodeObject.cpp
index a0041bfb7512ec08a766fb285f8a6f7c0cc2c56e..fc89337b86785784d15600a5dc80b9fbb201bdae 100644
--- a/Source/modules/accessibility/AXNodeObject.cpp
+++ b/Source/modules/accessibility/AXNodeObject.cpp
@@ -53,8 +53,8 @@ namespace blink {
 
 using namespace HTMLNames;
 
-AXNodeObject::AXNodeObject(Node* node)
-    : AXObject()
+AXNodeObject::AXNodeObject(Node* node, AXObjectCache* axObjectCache)
+    : AXObject(axObjectCache)
     , m_ariaRole(UnknownRole)
     , m_childrenDirty(false)
 #if ENABLE(ASSERT)
@@ -64,9 +64,9 @@ AXNodeObject::AXNodeObject(Node* node)
 {
 }
 
-PassRefPtr<AXNodeObject> AXNodeObject::create(Node* node)
+PassRefPtr<AXNodeObject> AXNodeObject::create(Node* node, AXObjectCache* axObjectCache)
 {
-    return adoptRef(new AXNodeObject(node));
+    return adoptRef(new AXNodeObject(node, axObjectCache));
 }
 
 AXNodeObject::~AXNodeObject()