Display MathML fallback content when it is specified and take into account inline/display modes for…

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 32 matching lines @@
     RuleSet* defaultPrintStyle() { return m_defaultPrintStyle.get(); }
     RuleSet* defaultViewSourceStyle();
 
     // FIXME: Remove WAP support.
     RuleSet* defaultXHTMLMobileProfileStyle();
 
     StyleSheetContents* defaultStyleSheet() { return m_defaultStyleSheet.get(); }
     StyleSheetContents* viewportStyleSheet() { return m_viewportStyleSheet.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(); }
 
     void trace(Visitor*);
 
 private:
     CSSDefaultStyleSheets();
 
     OwnPtrWillBeMember<RuleSet> m_defaultStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultViewportStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultQuirksStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultPrintStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultViewSourceStyle;
     OwnPtrWillBeMember<RuleSet> m_defaultXHTMLMobileProfileStyle;
 
     RefPtrWillBeMember<StyleSheetContents> m_defaultStyleSheet;
     RefPtrWillBeMember<StyleSheetContents> m_viewportStyleSheet;
     RefPtrWillBeMember<StyleSheetContents> m_quirksStyleSheet;
     RefPtrWillBeMember<StyleSheetContents> m_svgStyleSheet;
+    RefPtrWillBeMember<StyleSheetContents> m_mathmlStyleSheet;
     RefPtrWillBeMember<StyleSheetContents> m_mediaControlsStyleSheet;
     RefPtrWillBeMember<StyleSheetContents> m_fullscreenStyleSheet;
 };
 
 } // namespace WebCore
 
 #endif // CSSDefaultStyleSheets_h