Add support for the object-position CSS property.

Source/core/css/CSSParser.h

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 - 2010  Torch Mobile (Beijing) Co. Ltd. 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 219 matching lines @@
     bool parseBorderImageWidth(RefPtr<CSSPrimitiveValue>&);
     bool parseBorderImageOutset(RefPtr<CSSPrimitiveValue>&);
     bool parseBorderRadius(CSSPropertyID, bool important);
 
     bool parseAspectRatio(bool important);
 
     bool parseReflect(CSSPropertyID, bool important);
 
     bool parseFlex(CSSParserValueList* args, bool important);
 
+    bool parseObjectPosition(bool important);
+
     // Image generators
     bool parseCanvas(CSSParserValueList*, RefPtr<CSSValue>&);
 
     bool parseDeprecatedGradient(CSSParserValueList*, RefPtr<CSSValue>&);
     bool parseDeprecatedLinearGradient(CSSParserValueList*, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
     bool parseDeprecatedRadialGradient(CSSParserValueList*, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
     bool parseLinearGradient(CSSParserValueList*, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
     bool parseRadialGradient(CSSParserValueList*, RefPtr<CSSValue>&, CSSGradientRepeat repeating);
     bool parseGradientColorStops(CSSParserValueList*, CSSGradientValue*, bool expectComma);
 
@@ skipping 511 matching lines @@
 }
 
 inline int cssyylex(void* yylval, CSSParser* parser)
 {
     return parser->lex(yylval);
 }
 
 } // namespace WebCore
 
 #endif // CSSParser_h