diff --git a/source b/source
index 2c5ffa547d9..e10d4afbbb2 100644
--- a/source
+++ b/source
@@ -99975,51 +99975,6 @@ const p2 = navigation.navigate(url2).finished;</code></pre>
   </ol>
   </div>
 
-  <div algorithm>
-  <p>To <dfn>promote an upcoming API method tracker to ongoing</dfn> given a <code>Navigation</code>
-  <var>navigation</var> and a string-or-null <var>destinationKey</var>:</p>
-
-  <ol>
-   <li><p><span>Assert</span>: <var>navigation</var>'s <span>ongoing API method tracker</span> is
-   null.</p></li>
-
-   <li>
-    <p>If <var>destinationKey</var> is not null, then:</p>
-
-    <ol>
-     <li><p><span>Assert</span>: <var>navigation</var>'s <span>upcoming non-traverse API method
-     tracker</span> is null.</p></li>
-
-     <li>
-      <p>If <var>navigation</var>'s <span>upcoming traverse API method
-      trackers</span>[<var>destinationKey</var>] <span data-x="map exists">exists</span>, then:</p>
-
-      <ol>
-       <li><p>Set <var>navigation</var>'s <span>ongoing API method tracker</span> to
-       <var>navigation</var>'s <span>upcoming traverse API method
-       trackers</span>[<var>destinationKey</var>].</p></li>
-
-       <li><p><span data-x="map remove">Remove</span> <var>navigation</var>'s <span>upcoming
-       traverse API method trackers</span>[<var>destinationKey</var>].</p></li>
-      </ol>
-     </li>
-    </ol>
-   </li>
-
-   <li>
-    <p>Otherwise:</p>
-
-    <ol>
-     <li><p>Set <var>navigation</var>'s <span>ongoing API method tracker</span> to
-     <var>navigation</var>'s <span>upcoming non-traverse API method tracker</span>.</p></li>
-
-     <li><p>Set <var>navigation</var>'s <span>upcoming non-traverse API method tracker</span> to
-     null.</p></li>
-    </ol>
-   </li>
-  </ol>
-  </div>
-
   <div algorithm>
   <p>To <dfn data-x="navigation-api-method-tracker-clean-up">clean up</dfn> a <span>navigation API
   method tracker</span> <var>apiMethodTracker</var>:</p>
@@ -101431,8 +101386,43 @@ interface <dfn interface>NavigationDestination</dfn> {
 
    <li><p><span>Assert</span>: <var>destinationKey</var> is not the empty string.</p></li>
 
-   <li><p><span>Promote an upcoming API method tracker to ongoing</span> given
-   <var>navigation</var> and <var>destinationKey</var>.</p></li>
+   <li><p>Let <var>upcomingMethodTracker</var> be <var>navigation</var>'s <span>upcoming
+   non-traverse API method tracker</span>.</p></li>
+
+   <li><p>Set <var>navigation</var>'s <span>upcoming non-traverse API method tracker</span> to
+   null.</p></li>
+
+   <li><p><span>Assert</span>: <var>navigation</var>'s <span>ongoing API method tracker</span> is
+   null.</p></li>
+
+   <li>
+    <p><dfn>Promote an upcoming API method tracker to ongoing</dfn>:</p>
+    <ol>
+     <li>
+      <p>If <var>destinationKey</var> is not null, then:</p>
+
+      <ol>
+       <li>
+        <p>If <var>navigation</var>'s <span>upcoming traverse API method
+        trackers</span>[<var>destinationKey</var>] <span data-x="map exists">exists</span>,
+        then:</p>
+
+        <ol>
+         <li><p>Set <var>navigation</var>'s <span>ongoing API method tracker</span> to
+         <var>navigation</var>'s <span>upcoming traverse API method
+         trackers</span>[<var>destinationKey</var>].</p></li>
+
+         <li><p><span data-x="map remove">Remove</span> <var>navigation</var>'s <span>upcoming
+         traverse API method trackers</span>[<var>destinationKey</var>].</p></li>
+        </ol>
+       </li>
+      </ol>
+     </li>
+
+     <li><p>Otherwise, set <var>navigation</var>'s <span>ongoing API method tracker</span> to
+     <var>upcomingMethodTracker</var>.</p></li>
+    </ol>
+   </li>
 
    <li><p>Let <var>apiMethodTracker</var> be <var>navigation</var>'s <span>ongoing API method
    tracker</span>.</p></li>