Navigation API: Pass abort error as reason

Fixes #11715.

Author: noamr

source

@@ -100138,7 +100138,8 @@ const p2 = navigation.navigate(url2).finished;</code></pre>
    <li><p>If <var>event</var>'s <span>dispatch flag</span> is set, then set <var>event</var>'s
    <span>canceled flag</span> to true.</p></li>
 
-   <li><p><span data-x="abort a NavigateEvent">Abort</span> <var>event</var>.</p></li>
+   <li><p><span data-x="abort a NavigateEvent">Abort</span> <var>event</var> given
+   <var>error</var>.</p></li>
   </ol>
 
   <p>To <dfn>abort a <code>NavigateEvent</code></dfn> <var>event</var> given <var>reason</var>:</p>