Allow counter-reset/increment: none.

Source/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl

Index: Source/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl
diff --git a/Source/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl b/Source/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl
index 87f4b581a09e63550590402feb1e681dbc117d29..47dd7dbf8625a9f1a8b0f96b9f8070f30d051a62 100644
--- a/Source/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl
+++ b/Source/build/scripts/templates/StyleBuilderFunctions.cpp.tmpl
@@ -312,11 +312,6 @@ namespace WebCore {
 
 {{ declare_value_function(property_id) }}
 {
-    if (!value->isValueList())
-        return;
-
-    CSSValueList* list = toCSSValueList(value);
-
     CounterDirectiveMap& map = state.style()->accessCounterDirectives();
     typedef CounterDirectiveMap::iterator Iterator;
 
@@ -324,6 +319,13 @@ namespace WebCore {
     for (Iterator it = map.begin(); it != end; ++it)
         it->value.clear{{action}}();
 
+    if (!value->isValueList()) {
+        ASSERT(value->isPrimitiveValue() && toCSSPrimitiveValue(value)->getValueID() == CSSValueNone);
+        return;
+    }
+
+    CSSValueList* list = toCSSValueList(value);
+
     int length = list ? list->length() : 0;
     for (int i = 0; i < length; ++i) {
         CSSValue* currValue = list->itemWithoutBoundsCheck(i);