Remove DOMImplementation.createCSSStyleSheet()

Source/core/css/StyleSheetContents.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2012 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 519 matching lines @@
 
 StyleSheetContents* StyleSheetContents::parentStyleSheet() const
 {
     return m_ownerRule ? m_ownerRule->parentStyleSheet() : 0;
 }
 
 void StyleSheetContents::registerClient(CSSStyleSheet* sheet)
 {
     ASSERT(!m_loadingClients.contains(sheet) && !m_completedClients.contains(sheet));
 
-    // InspectorCSSAgent::buildObjectForRule and document.implementation.createCSSStyleSheet
-    // creates CSSStyleSheet without any owner node.
+    // InspectorCSSAgent::buildObjectForRule creates CSSStyleSheet without any owner node.
     if (!sheet->ownerDocument())
         return;
 
     if (Document* document = clientSingleOwnerDocument()) {
         if (sheet->ownerDocument() != document)
             m_hasSingleOwnerDocument = false;
     }
     m_loadingClients.add(sheet);
 }
 
@@ skipping 136 matching lines @@
 {
     visitor->trace(m_ownerRule);
     visitor->trace(m_importRules);
     visitor->trace(m_childRules);
     visitor->trace(m_loadingClients);
     visitor->trace(m_completedClients);
     visitor->trace(m_ruleSet);
 }
 
 }