LayoutTests/fast/layoutformattingcontext/table-with-percent-columns-and-spacing.html

<!-- webkit-test-runner [ LayoutFormattingContextEnabled=true InlineFormattingContextIntegrationEnabled=false ] -->
<style>
td {
 background-color: green;
 width: 100px;
}
</style>
<table height=500 style="border-spacing: 10px;">
<tr><td height=50%></td></tr>
<tr><td height=50%></td></tr>
</table>