Implementation of CSS3 nav-up/down/left/right properties from CSS3 UI.

Source/core/css/CSSPrimitiveValue.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  *
  * 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 96 matching lines @@
         CSS_DPI = 31,
         CSS_DPCM = 32,
         CSS_FR = 33,
         CSS_PAIR = 100, // We envision this being exposed as a means of getting computed style values for pairs (border-spacing/radius, background-position, etc.)
         CSS_UNICODE_RANGE = 102,
 
         // These next types are just used internally to allow us to translate back and forth from CSSPrimitiveValues to CSSParserValues.
         CSS_PARSER_OPERATOR = 103,
         CSS_PARSER_INTEGER = 104,
         CSS_PARSER_HEXCOLOR = 105,
+        CSS_PARSER_IDSEL = 106,
 
         // This is used internally for unknown identifiers
-        CSS_PARSER_IDENTIFIER = 106,
+        CSS_PARSER_IDENTIFIER = 107,
 
         // These are from CSS3 Values and Units, but that isn't a finished standard yet
-        CSS_TURN = 107,
-        CSS_REMS = 108,
-        CSS_CHS = 109,
+        CSS_TURN = 108,
+        CSS_REMS = 109,
+        CSS_CHS = 110,
 
         // This is used internally for counter names (as opposed to counter values)
-        CSS_COUNTER_NAME = 110,
+        CSS_COUNTER_NAME = 111,
 
         // This is used by the CSS Shapes draft
-        CSS_SHAPE = 111,
+        CSS_SHAPE = 112,
 
         // Used by border images.
-        CSS_QUAD = 112,
+        CSS_QUAD = 113,
 
-        CSS_CALC = 113,
-        CSS_CALC_PERCENTAGE_WITH_NUMBER = 114,
-        CSS_CALC_PERCENTAGE_WITH_LENGTH = 115,
+        CSS_CALC = 114,
+        CSS_CALC_PERCENTAGE_WITH_NUMBER = 115,
+        CSS_CALC_PERCENTAGE_WITH_LENGTH = 116,
 
         CSS_PROPERTY_ID = 117,
         CSS_VALUE_ID = 118
     };
 
     enum LengthUnitType {
         UnitTypePixels = 0,
         UnitTypePercentage,
         UnitTypeFontSize,
         UnitTypeFontXSize,
@@ skipping 288 matching lines @@
     } m_value;
 };
 
 typedef CSSPrimitiveValue::CSSLengthArray CSSLengthArray;
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSPrimitiveValue, isPrimitiveValue());
 
 } // namespace WebCore
 
 #endif // CSSPrimitiveValue_h