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

Source/core/html/PluginDocument.cpp

 /*
  * Copyright (C) 2006, 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 141 matching lines @@
         return toRenderEmbeddedObject(m_pluginNode->renderer())->widget();
     }
     return 0;
 }
 
 Node* PluginDocument::pluginNode()
 {
     return m_pluginNode.get();
 }
 
-void PluginDocument::detach()
+void PluginDocument::detach(const AttachContext& context)
 {
     // Release the plugin node so that we don't have a circular reference.
     m_pluginNode = 0;
     if (FrameLoader* loader = frame()->loader())
         loader->client()->redirectDataToPlugin(0);
-    HTMLDocument::detach();
+    HTMLDocument::detach(context);
 }
 
 void PluginDocument::cancelManualPluginLoad()
 {
     // PluginDocument::cancelManualPluginLoad should only be called once, but there are issues
     // with how many times we call beforeload on object elements. <rdar://problem/8441094>.
     if (!shouldLoadPluginManually())
         return;
 
     DocumentLoader* documentLoader = frame()->loader()->activeDocumentLoader();
     documentLoader->cancelMainResourceLoad(frame()->loader()->cancelledError(documentLoader->request()));
     setShouldLoadPluginManually(false);
 }
 
 }