Add closewatcher override for requestClose

source

@@ -61993,7 +61993,8 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
      value</span>.</p></li>
 
      <li><p><i data-x="create-close-watcher-getEnabledState">getEnabledState</i> being to return
-     true if <var>dialog</var>'s <span>computed closed-by state</span> is not <span
+     true if <var>dialog</var>'s <span>enable closewatcher for requestclose</span> is true or
+     <var>dialog</var>'s <span>computed closed-by state</span> is not <span
      data-x="attr-dialog-closedby-none-state">None</span>; otherwise false.</p></li>
     </ul>
    </li>
@@ -62102,13 +62103,19 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
    <li><p><span>Assert</span>: <var>this</var>'s <span data-x="dialog-close-watcher">close
    watcher</span> is not null.</p></li>
 
+   <li><p>Set <var>dialog</var>'s <span>enable closewatcher for requestclose</span> to
+   true.</p></li>
+
    <li><p>If <var>returnValue</var> is not given, then set it to null.</p></li>
 
    <li><p>Set <var>this</var>'s <span>request close return value</span> to
    <var>returnValue</var>.</p></li>
 
    <li><p><span data-x="close-watcher-request-close">Request to close</span> <var>dialog</var>'s
    <span data-x="dialog-close-watcher">close watcher</span>.</p></li>
+
+   <li><p>Set <var>dialog</var>'s <span>enable closewatcher for requestclose</span> to
+   false.</p></li>
   </ol>
 
   <p>When a <code>dialog</code> element <var>subject</var> is to be <dfn data-x="close the
@@ -62236,6 +62243,9 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
   <p>Each <code>dialog</code> element has a <dfn>request close return value</dfn>, which is a
   string, initially null.</p>
 
+  <p>Each <code>dialog</code> element has an <dfn>enable closewatcher for requestclose</dfn> flag,
+  initially false.</p>
+
   <p>Each <code>dialog</code> element has an <dfn>is modal</dfn> flag. When a <code>dialog</code>
   element is created, this flag must be set to false.</p>