Move the `privacy` extension API out of experimental.

chrome/common/extensions/docs/static/permission_warnings.html

 <div id="pageData-name" class="pageData">Permission Warnings</div>
 <div id="pageData-showTOC" class="pageData">true</div>
 
 <!--
 NOTE: When this doc is updated, the online help should also be updated:
 http://www.google.com/support/chrome_webstore/bin/answer.py?hl=en&answer=186213
 
 We should periodically look at 
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@@ skipping 337 matching lines @@
   </td>
   <td>
     Allows the extension to use the following editing commands with
     <code>document.execCommand()</code>:
     <ul>
       <li> <code>"copy"</code> </li>
       <li> <code>"cut"</code> </li>
     </ul>
   </td>
 </tr>
+
+<tr>
+  <td style="font-weight:bold">
+    <!-- IDS_EXTENSION_PROMPT_WARNING_PRIVACY-->
+    Privacy-related settings
+  </td>
+  <td>
+    "privacy" permission
+  </td>
+  <td>
+    The "privacy" permission is required by the
+    <a href="privacy.html"><code>chrome.privacy</code></a> module.
+  </td>
+</tr>
 </table>
 </p>
 
 
 <h2 id="nowarning"> Permissions that don't cause warnings </h2>
 
 <p>
 The following permissions don't result in a warning:
 </p>
 
@@ skipping 37 matching lines @@
 by clicking the <b>chrome://extensions</b> page's
 <b>Update extensions now</b> button.
 </p>
 
 <h2 id="api">API</h2>
 
 <p>
 You can get a list of permission warnings for any manifest with
 <a href="management.html#method-getPermissionWarnings">chrome.management.getPermissionWarnings()</a>.
 </p>