Merge CSSDefaultStyleSheets into StyleResolver.

sky/engine/core/css/CSSDefaultStyleSheets.h

-/*
- * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
- * Copyright (C) 2013 Google 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,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef CSSDefaultStyleSheets_h
-#define CSSDefaultStyleSheets_h
-
-#include "wtf/OwnPtr.h"
-#include "wtf/RefPtr.h"
-
-namespace blink {
-
-class Element;
-class RuleSet;
-class StyleSheetContents;
-
-class CSSDefaultStyleSheets {
-public:
-    static CSSDefaultStyleSheets& instance();
-
-    RuleSet* defaultStyle() { return m_defaultStyle.get(); }
-    RuleSet* defaultViewportStyle() { return m_defaultViewportStyle.get(); }
-
-    StyleSheetContents* defaultStyleSheet() { return m_defaultStyleSheet.get(); }
-    StyleSheetContents* viewportStyleSheet() { return m_viewportStyleSheet.get(); }
-
-private:
-    CSSDefaultStyleSheets();
-
-    OwnPtr<RuleSet> m_defaultStyle;
-    OwnPtr<RuleSet> m_defaultViewportStyle;
-
-    RefPtr<StyleSheetContents> m_defaultStyleSheet;
-    RefPtr<StyleSheetContents> m_viewportStyleSheet;
-};
-
-} // namespace blink
-
-#endif // CSSDefaultStyleSheets_h