Merge StyleSheet into CSSStyleSheet.

sky/engine/core/css/StyleSheetList.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007 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 12 matching lines @@
 
 #include "sky/engine/core/css/CSSStyleSheet.h"
 #include "sky/engine/core/dom/TreeScope.h"
 #include "sky/engine/wtf/Forward.h"
 #include "sky/engine/wtf/PassRefPtr.h"
 #include "sky/engine/wtf/RefCounted.h"
 #include "sky/engine/wtf/Vector.h"
 
 namespace blink {
 
+class CSSStyleSheet;
 class HTMLStyleElement;
-class StyleSheet;
 
 class StyleSheetList : public RefCounted<StyleSheetList> {
 public:
     static PassRefPtr<StyleSheetList> create(TreeScope* treeScope) { return adoptRef(new StyleSheetList(treeScope)); }
     ~StyleSheetList();
 
     unsigned length();
-    StyleSheet* item(unsigned index);
+    CSSStyleSheet* item(unsigned index);
 
     HTMLStyleElement* getNamedItem(const AtomicString&) const;
 
     Document* document() { return m_treeScope ? &m_treeScope->document() : 0; }
 
 #if !ENABLE(OILPAN)
     void detachFromDocument();
 #endif
 
     CSSStyleSheet* anonymousNamedGetter(const AtomicString&);
 
 private:
     StyleSheetList(TreeScope*);
-    const Vector<RefPtr<StyleSheet> >& styleSheets();
+    const Vector<RefPtr<CSSStyleSheet> >& styleSheets();
 
     RawPtr<TreeScope> m_treeScope;
 #if !ENABLE(OILPAN)
-    Vector<RefPtr<StyleSheet> > m_detachedStyleSheets;
+    Vector<RefPtr<CSSStyleSheet> > m_detachedStyleSheets;
 #endif
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_CSS_STYLESHEETLIST_H_