Update CSS tests to revision d674587d6ae7d2e231d632785559f2613d554eb0

tests/wpt/css-tests/css-flexbox-1_dev/html/flex-order.htm

@@ -7,20 +7,20 @@
   <meta content="ordered flex items should ordered properly" name="assert">
   <style>
     #container {
-      display: -webkit-flex;
+      display: flex;
     }
     #lowOrdinal {
-      -webkit-order: 3;
+      order: 3;
       background: red;
       height: 100px; width: 100px;
     }
     #highOrdinal {
-      -webkit-order: 1;
+      order: 1;
       background: lime;
       height: 100px; width: 100px;
     }
     #middleOrdinal {
-      -webkit-order: 2;
+      order: 2;
       background: orange;
       height: 100px; width: 100px;
     }