Revert of Rename AXObject to AXObjectImpl in modules/ and web/

third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp b/third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp
index 7ef8e0e8ba2061cd30cbb8226e310ee49dffb720..713c4e5c42bba37376d8b1e4897eff9c3cd1b52b 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp
@@ -65,7 +65,7 @@
   if (!isHTMLOptionElement(*element))
     return 0;
 
-  AXObjectImpl* object = AxObjectCache().GetOrCreate(element);
+  AXObject* object = AxObjectCache().GetOrCreate(element);
   if (!object || !object->IsMenuListOption())
     return 0;
 
@@ -130,13 +130,13 @@
   AXObjectCacheImpl& cache = AxObjectCache();
   if (active_index_ != option_index && active_index_ >= 0 &&
       active_index_ < static_cast<int>(children_.size())) {
-    AXObjectImpl* previous_child = children_[active_index_].Get();
+    AXObject* previous_child = children_[active_index_].Get();
     cache.PostNotification(previous_child,
                            AXObjectCacheImpl::kAXMenuListItemUnselected);
   }
 
   if (option_index >= 0 && option_index < static_cast<int>(children_.size())) {
-    AXObjectImpl* child = children_[option_index].Get();
+    AXObject* child = children_[option_index].Get();
     cache.PostNotification(this, AXObjectCacheImpl::kAXActiveDescendantChanged);
     cache.PostNotification(child, AXObjectCacheImpl::kAXMenuListItemSelected);
   }
@@ -167,7 +167,7 @@
                            AXObjectCacheImpl::kAXFocusedUIElementChanged);
 }
 
-AXObjectImpl* AXMenuListPopup::ActiveDescendant() {
+AXObject* AXMenuListPopup::ActiveDescendant() {
   if (active_index_ < 0 || active_index_ >= static_cast<int>(Children().size()))
     return nullptr;