forgot an argument

Author: annevk

cssom-view/Overview.html

@@ -578,8 +578,8 @@ <h3 id=the-stylemedia-interface><span class=secno>4.1. </span>The <code
 
   <p>The <dfn id=dom-StyleMedia-removeMediumListener
    title=dom-StyleMedia-removeMediumListener><code>removeMediumListener(<var
-   title="">medium</var>)</code></dfn> method <em class=ct>must</em> run
-   these steps:
+   title="">medium</var>, <var title="">mediumcallback</var>)</code></dfn>
+   method <em class=ct>must</em> run these steps:
 
   <ol>
    <li>

cssom-view/Overview.src.html

@@ -428,7 +428,7 @@ <h3 id="the-stylemedia-interface">The <code title="">StyleMedia</code> Interface
   </ol>
 
   <p>The
-  <dfn id="dom-StyleMedia-removeMediumListener" title="dom-StyleMedia-removeMediumListener"><code>removeMediumListener(<var title="">medium</var>)</code></dfn>
+  <dfn id="dom-StyleMedia-removeMediumListener" title="dom-StyleMedia-removeMediumListener"><code>removeMediumListener(<var title="">medium</var>, <var title="">mediumcallback</var>)</code></dfn>
   method <em class="ct">must</em> run these steps:</p>
 
   <ol>