deprecate webui.css

chrome/browser/resources/options/options_page.css

 .hbox {
   display: -webkit-box;
   -webkit-box-orient: horizontal;
 }
 
 .vbox {
   display: -webkit-box;
   -webkit-box-orient: vertical;
 }
 
@@ skipping 559 matching lines @@
  * show the link to the Flash storage settings manager:
  */
 html[flashPluginSupportsClearSiteData] .flash-plugin-area,
 html:not([flashPluginSupportsClearSiteData]) .clear-plugin-lso-data-enabled,
 html[flashPluginSupportsClearSiteData] .clear-plugin-lso-data-disabled {
   display: none;
 }
 
 
 /* Display a collection of sections as a table in order to display nicely
- * in multiple locales. This is a further refinement of the displaytable class
- * in webui.css.
+ * in multiple locales.
  */
 .displaytable {
+  display: table;
   width: 100%;
 }
 
 .displaytable > section {
   display: table-row;
 }
 
 /* right table column containing settable options */
 .displaytable > section > h3 + div,
 .displaytable > section > h3 + table {
   padding-bottom: 20px;
 }
 
 /* Setting the padding on the header so the alignment doesn't depend on the
  * contents of the right table column.  */
 .displaytable > section > h3 {
   padding-top: 17px;
 }
 
 .displaytable > section > * {
   display: table-cell;
   vertical-align: baseline;
   border-bottom: 1px solid #eeeeee;
 }
 
 /* do not display a border after the last section in the table */
 .displaytable:not([searching='true']) > section:last-child > *  {
   border-bottom: none;
 }