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

Source/core/html/HTMLFrameElementBase.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann (hausmann@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 143 matching lines @@
     // during attribute parsing *before* the normal parser machinery would
     // attach the element. To support this, we lazyAttach here, but only
     // if we don't already have a renderer (if we're inserted
     // as part of a DocumentFragment, insertedInto from an earlier element
     // could have forced a style resolve and already attached us).
     if (!renderer())
         lazyAttach(DoNotSetAttached);
     setNameAndOpenURL();
 }
 
-void HTMLFrameElementBase::attach()
+void HTMLFrameElementBase::attach(const AttachContext& context)
 {
-    HTMLFrameOwnerElement::attach();
+    HTMLFrameOwnerElement::attach(context);
 
     if (RenderPart* part = renderPart()) {
         if (Frame* frame = contentFrame())
             part->setWidget(frame->view());
     }
 }
 
 KURL HTMLFrameElementBase::location() const
 {
     if (fastHasAttribute(srcdocAttr))
@@ skipping 45 matching lines @@
 
 int HTMLFrameElementBase::height()
 {
     document()->updateLayoutIgnorePendingStylesheets();
     if (!renderBox())
         return 0;
     return renderBox()->height();
 }
 
 } // namespace WebCore