[gow] (2) Hide <audio> irrespective of CSS.

git-svn-id: http://svn.whatwg.org/webapps@4083 340c8d12-0b0e-0410-8428-c7bf67bfef74

index

   expected to be treated as a replaced element about one line high, as
   wide as is necessary to expose the user agent's user interface
   features. When an <code><a href=#audio>audio</a></code> element is not <a href=#expose-a-user-interface-to-the-user title="expose a user interface to the user">exposing a user
-  interface</a>, it is expected to render as an empty element.</p>
+  interface</a>, the user agent is expected to hide it,
+  irrespective of CSS rules.</p>
 
   <p>Whether a <code><a href=#video>video</a></code> element is <a href=#expose-a-user-interface-to-the-user title="expose a
   user interface to the user">exposing a user interface</a> is not

source

   wide as is necessary to expose the user agent's user interface
   features. When an <code>audio</code> element is not <span
   title="expose a user interface to the user">exposing a user
-  interface</span>, it is expected to render as an empty element.</p>
+  interface</span>, the user agent is expected to hide it,
+  irrespective of CSS rules.</p>
 
   <p>Whether a <code>video</code> element is <span title="expose a
   user interface to the user">exposing a user interface</span> is not