Merge StyleSheet into CSSStyleSheet.

sky/engine/core/dom/StyleEngine.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 127 matching lines @@
 {
     if (treeScope == m_document)
         return documentStyleSheetCollection();
 
     StyleSheetCollectionMap::iterator it = m_styleSheetCollectionMap.find(&treeScope);
     if (it == m_styleSheetCollectionMap.end())
         return 0;
     return it->value.get();
 }
 
-const Vector<RefPtr<StyleSheet> >& StyleEngine::styleSheetsForStyleSheetList(TreeScope& treeScope)
+const Vector<RefPtr<CSSStyleSheet> >& StyleEngine::styleSheetsForStyleSheetList(TreeScope& treeScope)
 {
     if (treeScope == m_document)
         return documentStyleSheetCollection()->styleSheetsForStyleSheetList();
 
     return ensureStyleSheetCollectionFor(treeScope)->styleSheetsForStyleSheetList();
 }
 
-void StyleEngine::modifiedStyleSheet(StyleSheet* sheet)
+void StyleEngine::modifiedStyleSheet(CSSStyleSheet* sheet)
 {
     if (!sheet)
         return;
 
     Node* node = sheet->ownerNode();
     if (!node || !node->inDocument())
         return;
 
     TreeScope& treeScope = isHTMLStyleElement(*node) ? node->treeScope() : *m_document;
     ASSERT(isHTMLStyleElement(node) || treeScope == m_document);
@@ skipping 275 matching lines @@
 {
     if (!document().isActive())
         return;
 
     if (m_resolver)
         m_resolver->invalidateMatchedPropertiesCache();
     document().setNeedsStyleRecalc(SubtreeStyleChange);
 }
 
 }