[CSS Grid Layout] Update named grid lines syntax to the last version of the specs

Source/core/css/resolver/StyleBuilderCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
@@ skipping 31 matching lines @@
 #include "CSSPropertyNames.h"
 #include "CSSValueKeywords.h"
 #include "StyleBuilderFunctions.h"
 #include "StylePropertyShorthand.h"
 #include "core/css/BasicShapeFunctions.h"
 #include "core/css/CSSAspectRatioValue.h"
 #include "core/css/CSSCursorImageValue.h"
 #include "core/css/CSSFontValue.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSGradientValue.h"
+#include "core/css/CSSGridLineNamesValue.h"
 #include "core/css/CSSGridTemplateValue.h"
 #include "core/css/CSSImageSetValue.h"
 #include "core/css/CSSLineBoxContainValue.h"
 #include "core/css/CSSParser.h"
 #include "core/css/CSSPrimitiveValueMappings.h"
 #include "core/css/CSSProperty.h"
 #include "core/css/CSSReflectValue.h"
 #include "core/css/CSSShadowValue.h"
 #include "core/css/CSSVariableValue.h"
 #include "core/css/Counter.h"
@@ skipping 984 matching lines @@
         CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(value);
         return primitiveValue->getValueID() == CSSValueNone;
     }
 
     if (!value->isValueList())
         return false;
 
     size_t currentNamedGridLine = 0;
     for (CSSValueListIterator i = value; i.hasMore(); i.advance()) {
         CSSValue* currValue = i.value();
-        if (currValue->isPrimitiveValue()) {
-            CSSPrimitiveValue* primitiveValue = toCSSPrimitiveValue(currValue);
-            if (primitiveValue->isString()) {
-                String namedGridLine = primitiveValue->getStringValue();
+        if (currValue->isGridLineNamesValue()) {
+            CSSGridLineNamesValue* lineNamesValue = toCSSGridLineNamesValue(currValue);
+            for (CSSValueListIterator j = lineNamesValue; j.hasMore(); j.advance()) {
+                String namedGridLine = toCSSPrimitiveValue(j.value())->getStringValue();
                 NamedGridLinesMap::AddResult result = namedGridLines.add(namedGridLine, Vector<size_t>());
                 result.iterator->value.append(currentNamedGridLine);
                 OrderedNamedGridLines::AddResult orderedInsertionResult = orderedNamedGridLines.add(currentNamedGridLine, Vector<String>());
                 orderedInsertionResult.iterator->value.append(namedGridLine);
-                continue;
             }
+            continue;
         }
 
         ++currentNamedGridLine;
         GridTrackSize trackSize;
         if (!createGridTrackSize(currValue, trackSize, state))
             return false;
 
         trackSizes.append(trackSize);
     }
 
@@ skipping 1230 matching lines @@
         break;
     }
     case CSSPropertyEnableBackground:
         // Silently ignoring this property for now
         // http://bugs.webkit.org/show_bug.cgi?id=6022
         break;
     }
 }
 
 } // namespace WebCore