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

Source/core/dom/shadow/ShadowRoot.cpp

 /*
  * Copyright (C) 2011 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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 180 matching lines @@
     if (value == m_resetStyleInheritance)
         return;
 
     m_resetStyleInheritance = value;
     if (!isActive())
         return;
 
     setNeedsStyleRecalc();
 }
 
-void ShadowRoot::attach()
+void ShadowRoot::attach(const AttachContext& context)
 {
     StyleResolver* styleResolver = document()->styleResolver();
     styleResolver->pushParentShadowRoot(this);
-    DocumentFragment::attach();
+    DocumentFragment::attach(context);
     styleResolver->popParentShadowRoot(this);
 }
 
 Node::InsertionNotificationRequest ShadowRoot::insertedInto(ContainerNode* insertionPoint)
 {
     DocumentFragment::insertedInto(insertionPoint);
 
     if (!insertionPoint->inDocument() || !isOldest())
         return InsertionDone;
 
@@ skipping 61 matching lines @@
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM);
     DocumentFragment::reportMemoryUsage(memoryObjectInfo);
     TreeScope::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_prev, "prev");
     info.addMember(m_next, "next");
     info.addMember(m_scopeDistribution, "scopeDistribution");
 }
 
 }