Option Groups with display: none should not show the children option elements

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. (http://www.torchmobile.com/)
  *
@@ skipping 518 matching lines @@
 {
     ASSERT(direction == -1 || direction == 1);
     const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = this->listItems();
     int lastGoodIndex = listIndex;
     int size = listItems.size();
     for (listIndex += direction; listIndex >= 0 && listIndex < size; listIndex += direction) {
         --skip;
         HTMLElement* element = listItems[listIndex];
         if (!isHTMLOptionElement(*element))
             continue;
+        if (RenderStyle* style = element->renderStyle() ? element->renderStyle() : element->computedStyle()) {
+            if (style->display() == NONE)
+                continue;
+        }
         if (element->isDisabledFormControl())
             continue;
         if (!usesMenuList() && !element->renderer())
             continue;
         lastGoodIndex = listIndex;
         if (skip <= 0)
             break;
     }
     return lastGoodIndex;
 }
@@ skipping 1186 matching lines @@
     int focusedIndex = activeSelectionEndListIndex();
     if (focusedIndex < 0)
         focusedIndex = firstSelectableListIndex();
     if (focusedIndex < 0)
         return nullptr;
     HTMLElement* focused = listItems()[focusedIndex];
     return isHTMLOptionElement(focused) ? toHTMLOptionElement(focused) : nullptr;
 }
 
 } // namespace