Current work-in-progress crbug.com/567021

third_party/WebKit/Source/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.
  *
@@ skipping 19 matching lines @@
 
 class Element;
 class RuleSet;
 class StyleSheetContents;
 
 class CSSDefaultStyleSheets : public GarbageCollected<CSSDefaultStyleSheets> {
     WTF_MAKE_NONCOPYABLE(CSSDefaultStyleSheets);
 public:
     static CSSDefaultStyleSheets& instance();
 
-    void ensureDefaultStyleSheetsForElement(const Element&, bool& changedDefaultStyle);
-    void ensureDefaultStyleSheetForFullscreen();
+    bool ensureDefaultStyleSheetsForElement(const Element&);
+    bool ensureDefaultStyleSheetForFullscreen();
 
     RuleSet* defaultStyle() { return m_defaultStyle.get(); }
     RuleSet* defaultQuirksStyle() { return m_defaultQuirksStyle.get(); }
     RuleSet* defaultPrintStyle() { return m_defaultPrintStyle.get(); }
     RuleSet* defaultViewSourceStyle();
-    RuleSet* defaultMobileViewportStyle();
-    RuleSet* defaultTelevisionViewportStyle();
 
+    StyleSheetContents* ensureMobileViewportStyleSheet();
+    StyleSheetContents* ensureTelevisionViewportStyleSheet();
     // FIXME: Remove WAP support.
-    RuleSet* defaultXHTMLMobileProfileStyle();
+    StyleSheetContents* ensureXHTMLMobileProfileStyleSheet();
 
     StyleSheetContents* defaultStyleSheet() { return m_defaultStyleSheet.get(); }
     StyleSheetContents* quirksStyleSheet() { return m_quirksStyleSheet.get(); }
     StyleSheetContents* svgStyleSheet() { return m_svgStyleSheet.get(); }
     StyleSheetContents* mathmlStyleSheet() { return m_mathmlStyleSheet.get(); }
     StyleSheetContents* mediaControlsStyleSheet() { return m_mediaControlsStyleSheet.get(); }
     StyleSheetContents* fullscreenStyleSheet() { return m_fullscreenStyleSheet.get(); }
 
     DECLARE_TRACE();
 
 private:
     CSSDefaultStyleSheets();
 
     Member<RuleSet> m_defaultStyle;
-    Member<RuleSet> m_defaultMobileViewportStyle;
-    Member<RuleSet> m_defaultTelevisionViewportStyle;
     Member<RuleSet> m_defaultQuirksStyle;
     Member<RuleSet> m_defaultPrintStyle;
     Member<RuleSet> m_defaultViewSourceStyle;
-    Member<RuleSet> m_defaultXHTMLMobileProfileStyle;
 
     Member<StyleSheetContents> m_defaultStyleSheet;
     Member<StyleSheetContents> m_mobileViewportStyleSheet;
     Member<StyleSheetContents> m_televisionViewportStyleSheet;
+    Member<StyleSheetContents> m_xhtmlMobileProfileStyleSheet;
     Member<StyleSheetContents> m_quirksStyleSheet;
     Member<StyleSheetContents> m_svgStyleSheet;
     Member<StyleSheetContents> m_mathmlStyleSheet;
     Member<StyleSheetContents> m_mediaControlsStyleSheet;
     Member<StyleSheetContents> m_fullscreenStyleSheet;
 };
 
 } // namespace blink
 
 #endif // CSSDefaultStyleSheets_h