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

Source/core/html/shadow/SliderThumbElement.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 370 matching lines @@
 
 bool SliderThumbElement::willRespondToMouseClickEvents()
 {
     const HTMLInputElement* input = hostInput();
     if (input && !input->isDisabledOrReadOnly())
         return true;
 
     return HTMLDivElement::willRespondToMouseClickEvents();
 }
 
-void SliderThumbElement::detach()
+void SliderThumbElement::detach(const AttachContext& context)
 {
     if (m_inDragMode) {
         if (Frame* frame = document()->frame())
             frame->eventHandler()->setCapturingMouseEventsNode(0);
     }
-    HTMLDivElement::detach();
+    HTMLDivElement::detach(context);
 }
 
 HTMLInputElement* SliderThumbElement::hostInput() const
 {
     // Only HTMLInputElement creates SliderThumbElement instances as its shadow nodes.
     // So, shadowHost() must be an HTMLInputElement.
     return toHTMLInputElement(shadowHost());
 }
 
 static const AtomicString& sliderThumbShadowPseudoId()
@@ skipping 61 matching lines @@
     case MediaVolumeSliderThumbPart:
     case MediaFullScreenVolumeSliderPart:
     case MediaFullScreenVolumeSliderThumbPart:
         return mediaSliderContainer;
     default:
         return sliderContainer;
     }
 }
 
 }