Settings to remap Backspace and Escape keys

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

 <div id="keyboard-overlay" class="page" hidden>
   <div class="close-button"></div>
   <h1 i18n-content="keyboardOverlay"></h1>
   <div class="content-area">
     <table class="option-control-table">
        <tr>
          <td class="option-name" id="remap-search-key-to-label"
              i18n-content="remapSearchKeyToContent">
          </td>
          <td class="option-value">
@@ skipping 55 matching lines @@
          <td class="option-value">
            <select class="control"
                data-type="number"
                metric="Options_KeyboardRemapDiamondKey"
                pref="settings.language.remap_diamond_key_to"
                i18n-options="remapDiamondKeyToValue"
                aria-labelledby="remap-diamond-key-to-label" dialog-pref>
            </select>
          </td>
        </tr>
+       <tr>
+         <td class="option-name" id="remap-backspace-key-to-label"
+             i18n-content="remapBackspaceKeyToContent">
+         </td>
+         <td class="option-value">
+           <select class="control" data-type="number"
+               metric="Options_KeyboardRemapBackspaceKey"
+               pref="settings.language.remap_backspace_key_to"
+               i18n-options="remapBackspaceKeyToValue"
+               aria-labelledby="remap-backspace-key-to-label" dialog-pref>
+           </select>
+         </td>
+       </tr>
+       <tr>
+         <td class="option-name" id="remap-escape-key-to-label"
+             i18n-content="remapEscapeKeyToContent">
+         </td>
+         <td class="option-value">
+           <select class="control" data-type="number"
+               metric="Options_KeyboardRemapEscapeKey"
+               pref="settings.language.remap_escape_key_to"
+               i18n-options="remapEscapeKeyToValue"
+               aria-labelledby="remap-escape-key-to-label" dialog-pref></select>
+         </td>
+       </tr>
     </table>
     <div class="settings-row">
       <div class="checkbox controlled-setting-with-label">
         <label>
           <input type="checkbox"
               pref="settings.language.send_function_keys"
               aria-describedby="send-function-keys-description" dialog-pref>
           <span>
             <span i18n-content="sendFunctionKeys"></span>
             <span class="bubble-button controlled-setting-indicator"
@@ skipping 40 matching lines @@
   </div>
   <div class="action-area">
     <div class="button-strip">
       <button id="keyboard-cancel" type="reset" i18n-content="cancel"></button>
       <button id="keyboard-confirm" class="default-button" type="submit"
           i18n-content="ok">
       </button>
     </div>
   </div>
 </div>