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

Source/core/css/CSSPrimitiveValue.cpp

Index: Source/core/css/CSSPrimitiveValue.cpp
diff --git a/Source/core/css/CSSPrimitiveValue.cpp b/Source/core/css/CSSPrimitiveValue.cpp
index 2b1f3bd43b8f7789a69672e73c0fd21ed6a48e65..ba20474d7e6d8c00280fc555c3630633e9d755f0 100644
--- a/Source/core/css/CSSPrimitiveValue.cpp
+++ b/Source/core/css/CSSPrimitiveValue.cpp
@@ -95,6 +95,7 @@ static inline bool isValidCSSUnitTypeForDoubleConversion(CSSPrimitiveValue::Unit
     case CSSPrimitiveValue::CSS_PAIR:
     case CSSPrimitiveValue::CSS_PARSER_HEXCOLOR:
     case CSSPrimitiveValue::CSS_PARSER_IDENTIFIER:
+    case CSSPrimitiveValue::CSS_PARSER_IDSEL:
     case CSSPrimitiveValue::CSS_PARSER_INTEGER:
     case CSSPrimitiveValue::CSS_PARSER_OPERATOR:
     case CSSPrimitiveValue::CSS_RECT:
@@ -467,6 +468,7 @@ void CSSPrimitiveValue::cleanup()
     case CSS_ATTR:
     case CSS_COUNTER_NAME:
     case CSS_PARSER_HEXCOLOR:
+    case CSS_PARSER_IDSEL:
         if (m_value.string)
             m_value.string->deref();
         break;
@@ -1219,6 +1221,9 @@ String CSSPrimitiveValue::customCSSText(CSSTextFormattingFlags formattingFlag) c
         case CSS_PARSER_IDENTIFIER:
             text = quoteCSSStringIfNeeded(m_value.string);
             break;
+        case CSS_PARSER_IDSEL:
+            text = "#" + String(m_value.string);
+            break;
         case CSS_CALC:
             text = m_value.calc->cssText();
             break;
@@ -1322,6 +1327,7 @@ PassRefPtrWillBeRawPtr<CSSPrimitiveValue> CSSPrimitiveValue::cloneForCSSOM() con
     case CSS_PARSER_OPERATOR:
     case CSS_PARSER_IDENTIFIER:
     case CSS_PARSER_HEXCOLOR:
+    case CSS_PARSER_IDSEL:
         ASSERT_NOT_REACHED();
         break;
     }
@@ -1379,6 +1385,7 @@ bool CSSPrimitiveValue::equals(const CSSPrimitiveValue& other) const
     case CSS_COUNTER_NAME:
     case CSS_PARSER_IDENTIFIER:
     case CSS_PARSER_HEXCOLOR:
+    case CSS_PARSER_IDSEL:
         return equal(m_value.string, other.m_value.string);
     case CSS_COUNTER:
         return m_value.counter && other.m_value.counter && m_value.counter->equals(*other.m_value.counter);