Revert of Fire AX notifications on list box options.

Source/modules/accessibility/AXObjectCacheImpl.h

Index: Source/modules/accessibility/AXObjectCacheImpl.h
diff --git a/Source/modules/accessibility/AXObjectCacheImpl.h b/Source/modules/accessibility/AXObjectCacheImpl.h
index 8af261ddd2f0ba1d2049d7650ebc5e0540625d45..ecaa818ceb1e3ec9c63a6599824818a2d57fdc21 100644
--- a/Source/modules/accessibility/AXObjectCacheImpl.h
+++ b/Source/modules/accessibility/AXObjectCacheImpl.h
@@ -67,9 +67,7 @@
     virtual void childrenChanged(Node*) override;
     virtual void childrenChanged(LayoutObject*) override;
     virtual void checkedStateChanged(Node*) override;
-    virtual void listboxOptionStateChanged(HTMLOptionElement*);
-    virtual void listboxSelectedChildrenChanged(HTMLSelectElement*);
-    virtual void listboxActiveIndexChanged(HTMLSelectElement*);
+    virtual void selectedChildrenChanged(Node*) override;
 
     virtual void remove(LayoutObject*) override;
     virtual void remove(Node*) override;
@@ -137,11 +135,12 @@
     void remove(AbstractInlineTextBox*);
 
     void childrenChanged(AXObject*);
+    void selectedChildrenChanged(LayoutObject*);
+    void selectedChildrenChanged(AXObject*);
 
     void handleActiveDescendantChanged(Node*);
     void handleAriaRoleChanged(Node*);
     void handleAriaExpandedChange(Node*);
-    void handleAriaSelectedChanged(Node*);
 
     void recomputeIsIgnored(LayoutObject*);