Remove the Media Query "forward compatibly syntax" support in alignment with HTML5 spec

Source/core/css/MediaList.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2008, 2009, 2010, 2012 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 20 matching lines @@
 namespace WebCore {
 
 class CSSRule;
 class CSSStyleSheet;
 class Document;
 class MediaList;
 class MediaQuery;
 
 enum MediaQueryParserMode {
     MediaQueryNormalMode,
-    MediaQueryForwardCompatibleSyntaxMode,
     MediaQueryStrictMode,
 };
 
 class MediaQuerySet : public RefCounted<MediaQuerySet> {
 public:
     static PassRefPtr<MediaQuerySet> create()
     {
         return adoptRef(new MediaQuerySet());
     }
     static PassRefPtr<MediaQuerySet> create(const String& mediaString)
     {
         return adoptRef(new MediaQuerySet(mediaString, MediaQueryNormalMode));
     }
-    static PassRefPtr<MediaQuerySet> createAllowingDescriptionSyntax(const String& mediaString)
-    {
-        return adoptRef(new MediaQuerySet(mediaString, MediaQueryForwardCompatibleSyntaxMode));
-    }
     ~MediaQuerySet();
 
     bool set(const String&);
     bool add(const String&);
     bool remove(const String&);
 
     void addMediaQuery(PassOwnPtr<MediaQuery>);
 
     const Vector<OwnPtr<MediaQuery> >& queryVector() const { return m_queries; }
 
@@ skipping 62 matching lines @@
     CSSStyleSheet* m_parentStyleSheet;
     CSSRule* m_parentRule;
 };
 
 // Adds message to inspector console whenever dpi or dpcm values are used for "screen" media.
 void reportMediaQueryWarningIfNeeded(Document*, const MediaQuerySet*);
 
 } // namespace
 
 #endif