Revert of Fire AX notifications on list box options.

Source/modules/accessibility/AXObjectCacheImpl.cpp

Index: Source/modules/accessibility/AXObjectCacheImpl.cpp
diff --git a/Source/modules/accessibility/AXObjectCacheImpl.cpp b/Source/modules/accessibility/AXObjectCacheImpl.cpp
index a70a16ea3b0420532e71bb8a1c3df47f56d8772b..247178f6970e17caf1fdd28e88f3335e0d7d28a7 100644
--- a/Source/modules/accessibility/AXObjectCacheImpl.cpp
+++ b/Source/modules/accessibility/AXObjectCacheImpl.cpp
@@ -39,8 +39,6 @@
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLLabelElement.h"
-#include "core/html/HTMLOptionElement.h"
-#include "core/html/HTMLSelectElement.h"
 #include "core/layout/LayoutListBox.h"
 #include "core/layout/LayoutMenuList.h"
 #include "core/layout/LayoutProgress.h"
@@ -749,23 +747,21 @@
     postNotification(node, AXObjectCacheImpl::AXCheckedStateChanged);
 }
 
-void AXObjectCacheImpl::listboxOptionStateChanged(HTMLOptionElement* option)
-{
-    postNotification(option, AXCheckedStateChanged);
-}
-
-void AXObjectCacheImpl::listboxSelectedChildrenChanged(HTMLSelectElement* select)
-{
-    postNotification(select, AXSelectedChildrenChanged);
-}
-
-void AXObjectCacheImpl::listboxActiveIndexChanged(HTMLSelectElement* select)
-{
-    AXObject* obj = get(select);
-    if (!obj || !obj->isAXListBox())
-        return;
-
-    static_cast<AXListBox*>(obj)->activeIndexChanged();
+void AXObjectCacheImpl::selectedChildrenChanged(Node* node)
+{
+    selectedChildrenChanged(get(node));
+}
+
+void AXObjectCacheImpl::selectedChildrenChanged(LayoutObject* layoutObject)
+{
+    selectedChildrenChanged(get(layoutObject));
+}
+
+void AXObjectCacheImpl::selectedChildrenChanged(AXObject* obj)
+{
+    while (obj && obj->roleValue() != ListBoxRole)
+        obj = obj->parentObject();
+    postNotification(obj, AXSelectedChildrenChanged);
 }
 
 void AXObjectCacheImpl::handleScrollbarUpdate(FrameView* view)
@@ -798,19 +794,6 @@
 {
     if (AXObject* obj = getOrCreate(node))
         obj->handleAriaExpandedChanged();
-}
-
-void AXObjectCacheImpl::handleAriaSelectedChanged(Node* node)
-{
-    AXObject* obj = get(node);
-    if (!obj)
-        return;
-
-    postNotification(obj, AXCheckedStateChanged);
-
-    AXObject* listbox = obj->parentObjectUnignored();
-    if (listbox->roleValue() == ListBoxRole)
-        postNotification(listbox, AXSelectedChildrenChanged);
 }
 
 void AXObjectCacheImpl::handleActiveDescendantChanged(Node* node)
@@ -849,7 +832,7 @@
     else if (attrName == aria_checkedAttr)
         checkedStateChanged(element);
     else if (attrName == aria_selectedAttr)
-        handleAriaSelectedChanged(element);
+        selectedChildrenChanged(element);
     else if (attrName == aria_expandedAttr)
         handleAriaExpandedChange(element);
     else if (attrName == aria_hiddenAttr)