Include disabled stylesheets in document.styleSheets.

Source/core/dom/DocumentStyleSheetCollection.h

 /*
  * 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, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 89 matching lines @@
     void setUsesRemUnit(bool b) { m_usesRemUnits = b; }
 
     void combineCSSFeatureFlags();
     void resetCSSFeatureFlags();
 
     void reportMemoryUsage(MemoryObjectInfo*) const;
 
 private:
     DocumentStyleSheetCollection(Document*);
 
-    void collectActiveStyleSheets(Vector<RefPtr<StyleSheet> >&);
+    void collectStyleSheets(Vector<RefPtr<StyleSheet> >& styleSheets, Vector<RefPtr<CSSStyleSheet> >& activeSheets);
     enum StyleResolverUpdateType {
         Reconstruct,
         Reset,
         Additive
     };
     void analyzeStyleSheetChange(StyleResolverUpdateMode, const Vector<RefPtr<CSSStyleSheet> >& newStylesheets, StyleResolverUpdateType&, bool& requiresFullStyleRecalc);
 
     Document* m_document;
 
     Vector<RefPtr<StyleSheet> > m_styleSheetsForStyleSheetList;
@@ skipping 29 matching lines @@
     bool m_usesFirstLetterRules;
     bool m_usesBeforeAfterRules;
     bool m_usesBeforeAfterRulesOverride;
     bool m_usesRemUnits;
 };
 
 }
 
 #endif