Add defintion link and refactor set to be conditional

Author: bvandersloot-mozilla

source

@@ -2688,6 +2688,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
        <li><dfn data-x="concept-request-user-activation" data-x-href="https://fetch.spec.whatwg.org/#request-user-activation">user-activation</dfn></li>
        <li><dfn data-x="concept-request-render-blocking" data-x-href="https://fetch.spec.whatwg.org/#request-render-blocking">render-blocking</dfn></li>
        <li><dfn data-x="concept-request-initiator-type" data-x-href="https://fetch.spec.whatwg.org/#request-initiator-type">initiator type</dfn></li>
+       <li><dfn data-x="concept-request-top-level-navigation-initiator-origin" data-x-href="https://fetch.spec.whatwg.org/#concept-request-top-level-navigation-initiator-origin">referrer policy</dfn></li>
        <li><dfn data-x-href="https://fetch.spec.whatwg.org/#concept-request-add-range-header">add a range header</dfn></li>
       </ul>
      </li>
@@ -102636,14 +102637,17 @@ location.href = '#foo';</code></pre>
      <dt><span data-x="concept-request-referrer-policy">referrer policy</span></dt>
      <dd><var>entry</var>'s <span data-x="she-document-state">document state</span>'s <span
      data-x="document-state-request-referrer-policy">request referrer policy</span></dd>
-
-     <dt><span data-x="concept-request-navigation-initiator-origin">navigation initiator origin</span></dt>
-     <dd><var>entry</var>'s <span data-x="she-document-state">document state</span>'s <span
-     data-x="document-state-initiator-origin">initiator origin</span> if <var>navigable</var> is a <span>top-level traversable</span>,
-     null otherwise.</dd>
     </dl>
    </li>
 
+   <li>
+    <p>If <var>navigable</var> is a <span>top-level traversable</span>, set <var>request</var>'s
+      <span data-x="concept-request-top-level-navigation-initiator-origin">top-level navigation
+        initiator origin</span> to <var>entry</var>'s <span data-x="she-document-state">document
+        state</span>'s <span data-x="document-state-initiator-origin">initiator origin</span>
+    </p>
+   </li>
+
    <li>
     <p>If <var>documentResource</var> is a <span>POST resource</span>, then:</p>