chrome/browser/resources/options/chromeos/keyboard_overlay.html

<div id="keyboard-overlay" class="page" hidden>
  <div class="close-button"></div>
  <h1 i18n-content="keyboardOverlayTitle"></h1>
  <div class="content-area">
    <table class="option-control-table">
       <tr>
         <td>
           <label class="option-name" for="xkb-remap-search-key-to"
               i18n-content="xkbRemapSearchKeyToContent">
           </label>
         </td>
         <td class="option-value">
           <select id="xkb-remap-search-key-to" class="control"
               data-type="number" i18n-options="xkbRemapSearchKeyToValue"
               pref="settings.language.xkb_remap_search_key_to" dialog-pref>
           </select>
         </td>
       </tr>
       <tr>
         <td>
           <label class="option-name" for="xkb-remap-control-key-to"
               i18n-content="xkbRemapControlKeyToContent">
           </label>
         </td>
         <td class="option-value">
           <select id="xkb-remap-control-key-to" class="control"
               data-type="number" i18n-options="xkbRemapControlKeyToValue"
               pref="settings.language.xkb_remap_control_key_to" dialog-pref>
           </select>
         </td>
       </tr>
       <tr>
         <td>
           <label class="option-name" for="xkb-remap-alt-key-to"
               i18n-content="xkbRemapAltKeyToContent">
           </label>
         </td>
         <td class="option-value">
           <select id="xkb-remap-alt-key-to" class="control" data-type="number"
               pref="settings.language.xkb_remap_alt_key_to"
               i18n-options="xkbRemapAltKeyToValue" dialog-pref></select>
         </td>
       </tr>
    </table>
  </div>
  <div class="action-area">
    <div class="button-strip">
      <button id="keyboard-cancel" type="reset" i18n-content="cancel"></button>
      <button id="keyboard-confirm" type="submit" i18n-content="ok"></button>
    </div>
  </div>
</div>