:hover style not applied on hover if its display property is different from original style's

Source/core/html/HTMLOptionElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2004, 2005, 2006, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2011 Motorola Mobility, Inc.  All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 69 matching lines @@
 
     if (!value.isNull())
         element->setValue(value);
     if (defaultSelected)
         element->setAttribute(selectedAttr, emptyAtom);
     element->setSelected(selected);
 
     return element.release();
 }
 
-void HTMLOptionElement::attach()
+void HTMLOptionElement::attach(const AttachContext& context)
 {
-    HTMLElement::attach();
+    HTMLElement::attach(context);
     // If after attaching nothing called styleForRenderer() on this node we
     // manually cache the value. This happens if our parent doesn't have a
     // renderer like <optgroup> or if it doesn't allow children like <select>.
     if (!m_style && parentNode()->renderStyle())
         updateNonRenderStyle();
 }
 
-void HTMLOptionElement::detach()
+void HTMLOptionElement::detach(const AttachContext& context)
 {
     m_style.clear();
-    HTMLElement::detach();
+    HTMLElement::detach(context);
 }
 
 bool HTMLOptionElement::supportsFocus() const
 {
     return HTMLElement::supportsFocus();
 }
 
 bool HTMLOptionElement::isFocusable() const
 {
     // Option elements do not have a renderer so we check the renderStyle instead.
@@ skipping 284 matching lines @@
 
 const HTMLOptionElement* toHTMLOptionElement(const Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(optionTag));
     return static_cast<const HTMLOptionElement*>(node);
 }
 
 #endif
 
 } // namespace