[CSS Grid Layout] Update grid-auto-flow to the new syntax

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 1382 matching lines @@
             break;
         default:
             break;
         }
     } else {
         svgStyle->setBaselineShift(BS_LENGTH);
         svgStyle->setBaselineShiftValue(SVGLength::fromCSSPrimitiveValue(primitiveValue));
     }
 }
 
+void StyleBuilderFunctions::applyValueCSSPropertyGridAutoFlow(StyleResolverState& state, CSSValue* value)
+{
+    ASSERT(value->isValueList());
+    CSSValueList* list = toCSSValueList(value);
+
+    CSSPrimitiveValue* first = list->length() >= 1 ? toCSSPrimitiveValue(list->item(0)) : nullptr;
+
+    if (!first) {
+        applyInitialCSSPropertyGridAutoFlow(state);
+        return;
+    }
+
+    CSSPrimitiveValue* second = list->length() == 2 ? toCSSPrimitiveValue(list->item(1)) : nullptr;
+
+    GridAutoFlow autoFlow = RenderStyle::initialGridAutoFlow();
+    switch (first->getValueID()) {
+    case CSSValueRow:
+        if (second) {
+            if (second->getValueID() == CSSValueDense)
+                autoFlow = AutoFlowRowDense;
+            else
+                autoFlow = AutoFlowStackRow;
+        } else {
+            autoFlow = AutoFlowRow;
+        }
+        break;
+    case CSSValueColumn:
+        if (second) {
+            if (second->getValueID() == CSSValueDense)
+                autoFlow = AutoFlowColumnDense;
+            else
+                autoFlow = AutoFlowStackColumn;
+        } else {
+            autoFlow = AutoFlowColumn;
+        }
+        break;
+    case CSSValueDense:
+        if (second && second->getValueID() == CSSValueColumn)
+            autoFlow = AutoFlowColumnDense;
+        else
+            autoFlow = AutoFlowRowDense;
+        break;
+    case CSSValueStack:
+        if (second && second->getValueID() == CSSValueColumn)
+            autoFlow = AutoFlowStackColumn;
+        else
+            autoFlow = AutoFlowStackRow;
+        break;
+    default:
+        ASSERT_NOT_REACHED();
+        break;
+    }
+
+    state.style()->setGridAutoFlow(autoFlow);
+}
+
 } // namespace WebCore