Implement the inert attribute

third_party/WebKit/Source/core/html/HTMLSelectElement.cpp

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights
  * reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
@@ skipping 725 matching lines @@
   SetOptionsChangedOnLayoutObject();
   if (!isConnected()) {
     if (HTMLOptionsCollection* collection =
             CachedCollection<HTMLOptionsCollection>(kSelectOptions))
       collection->InvalidateCache();
     InvalidateSelectedItems();
   }
 
   if (GetLayoutObject()) {
     if (AXObjectCache* cache =
-            GetLayoutObject()->GetDocument().ExistingAXObjectCache())
+        GetLayoutObject()->GetDocument().ExistingAXObjectCache()) {
+      LOG(INFO) << "Calling childrenChanged";
       cache->ChildrenChanged(this);
+      return;
+    }
   }
+  LOG(INFO) << "Didn't call childrenChanged";
 }
 
 void HTMLSelectElement::RecalcListItems() const {
   TRACE_EVENT0("blink", "HTMLSelectElement::recalcListItems");
   list_items_.resize(0);
 
   should_recalc_list_items_ = false;
 
   for (Element* current_element = ElementTraversal::FirstWithin(*this);
        current_element && list_items_.size() < kMaxListItems;) {
@@ skipping 1300 matching lines @@
   popup_updater_ = nullptr;
 }
 
 void HTMLSelectElement::DidMutateSubtree() {
   DCHECK(PopupIsVisible());
   DCHECK(popup_);
   popup_->UpdateFromElement(PopupMenu::kByDOMChange);
 }
 
 }  // namespace blink