Stop rendering text inside flex boxes.

sky/tests/layout/ellipsis.sky

Index: sky/tests/layout/ellipsis.sky
diff --git a/sky/tests/layout/ellipsis.sky b/sky/tests/layout/ellipsis.sky
index 08288a42a0e0d5019a87b30ccfb92bd4351e1f76..bfb6758ea38016c5558f2b4aab96ce31f1ea03b5 100644
--- a/sky/tests/layout/ellipsis.sky
+++ b/sky/tests/layout/ellipsis.sky
@@ -1,13 +1,6 @@
 <sky>
     <import src="../resources/dump-as-render-tree.sky" />
     <style>
-        div {
-            width: 50px;
-            text-overflow: ellipsis;
-            overflow: hidden;
-            white-space: nowrap;
-            border: 3px solid blue;
-        }
         p {
             width: 50px;
             display: paragraph;
@@ -20,6 +13,6 @@
             display: inline;
         }
     </style>
-    <div>These lines <p>should</p> all ellipsize. </div>
+    <p>These lines <p>should</p> all ellipsize. </p>
     <p><span>As should this.</span></p>
 </sky>