[wpt] Fix align-content-table-cell-005.html

This test was written assuming unsafe overflow alignment applied, when
safe overflow alignment should have applied.

Fixed: 448462500
Change-Id: Ie9c974fb061aa0c6c8e11c7bc76906641aa60993
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7183336
Reviewed-by: Ian Kilpatrick <[email protected]>
Reviewed-by: David Grogan <[email protected]>
Commit-Queue: Ian Kilpatrick <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1548252}

Author: bfgeek

css/css-align/blocks/align-content-table-cell-005-ref-alt.html

@@ -4,14 +4,11 @@
 <link rel="help" href="https://drafts.csswg.org/css-align/#distribution-blocks">
 <link rel="help" href="https://drafts.csswg.org/css-align/#auto-safety">
 <link rel="match" href="../../reference/ref-filled-green-300px-square.html">
-<link rel="match" href="align-content-table-cell-005-ref-alt.html">
 <meta name="assert" content="
   The contents of the cells are 600px tall, but since we are collapsing one row,
   the cells shrink to be only 300px tall. Therefore, the contents overflow.
   This test checks various alignments with no overflow alignment specified,
-  they should behave as unsafe.
-  However, for cells which aren't scroll containers, UAs that have not implemented
-  the “smart” default behavior must behave as safe, hence there are 2 expectations.
+  they should behave as safe by default.
 ">
 
 <style>
@@ -26,20 +23,20 @@
   display: block;
   width: 50px;
   height: 600px;
-  background: linear-gradient(to bottom, var(--gradient));
+  background: linear-gradient(to bottom, green 50%, red 50%);
 }
 </style>
 
 <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
 
 <table cellspacing="0" cellpadding="0">
   <tr>
-    <td rowspan="2" style="align-content: start; --gradient: green 50%, red 50%"></td>
-    <td rowspan="2" style="align-content: center; --gradient: red 25%, green 25% 75%, red 75%"></td>
-    <td rowspan="2" style="align-content: end; --gradient: red 50%, green 50%"></td>
-    <td rowspan="2" style="overflow: hidden; align-content: start; --gradient: green 50%, red 50%"></td>
-    <td rowspan="2" style="overflow: hidden; align-content: center; --gradient: red 25%, green 25% 75%, red 75%"></td>
-    <td rowspan="2" style="overflow: hidden; align-content: end; --gradient: red 50%, green 50%"></td>
+    <td rowspan="2" style="align-content: start;"></td>
+    <td rowspan="2" style="align-content: center;"></td>
+    <td rowspan="2" style="align-content: end;"></td>
+    <td rowspan="2" style="overflow: hidden; align-content: start;"></td>
+    <td rowspan="2" style="overflow: hidden; align-content: center;"></td>
+    <td rowspan="2" style="overflow: hidden; align-content: end;"></td>
   </tr>
   <tr style="visibility: collapse"></tr>
 </table>