Move bookmarks_ui manifest key from chrome_settings_overrides to chrome_ui_overrides

chrome/common/extensions/docs/templates/articles/settings_override.html

 <h1>Settings Overrides</h1>
 
 <p>
-Settings overrides are a way for extensions to override selected Chrome settings
-and user interface properties.
+Settings overrides are a way for extensions to override selected Chrome settings.
 </p>
 
-<h2 id="bookmarks">Bookmarks User Interface</h2>
+<h2 id="bookmarks">Bookmarks User Interface (deprecated)</h2>
 <p>
-Register the settings you want to override in the
-<a href="manifest.html">extension manifest</a> like this:
-</p>
-
-<pre>{
-  "name": "My extension",
-  ...
-<b>
-  "chrome_settings_overrides" : {
-    "bookmarks_ui": {
-      "remove_button": "true",
-      "remove_bookmark_shortcut": "true"
-    }
-  }</b>,
-  ...
-}</pre>
-
-<p>
-<ul>
-  <li>
-    <a href="#bookmarks_ui">Bookmark button</a>: the "star" button that is used
-    to bookmark pages. Extensions may remove this button using the settings
-    overrides, and optionally replace it with a browser action or page action.
-  </li>
-
-  <li>
-    <a href="#bookmarks_ui">Bookmark shortcut</a>: the shortcut key that is
-    used to bookmark a page (Ctrl-D on Windows). Extensions may remove this
-    shortcut via the settings overrides, and optionally bind their own command
-    to it using the <code>commands</code> section of the manifest.
-  </li>
-</ul>
-</p>
-
-<p class="note">
-<b>Note:</b> Settings overrides for <code>bookmarks_ui</code> are only enabled
-in the Chrome Dev release, and Chrome must be started with the
-<code>--enable-override-bookmarks-ui=1</code> command line flag to enable
-bookmarks user interface overrides.</p>
+Use of Settings Overrides for overriding bookmarks user interface properties is deprecated. <a href="ui_override.html">User Interface Overrides</a> should be used instead.
 
 <h2 id="others">Homepage, Search Provider, and Startup Pages</h2>
 <p>
 Here is an example how <a href="#homepage">homepage</a>, <a
 href="#search_provider">search provider</a> and <a href="#startup_pages">startup
 pages</a> can be modified in the <a href="manifest.html">extension
 manifest</a>.</p>
 
 <pre>{
   "name": "My extension",
@@ skipping 47 matching lines @@
     {{+partials.type_item
        title:f.strings.properties
        display_name:display_name
        items:f.properties
        item_partial:(partials.parameter_full hideParamTOC:true)/}}
     </table>
   {{/}}
 {{/}}
 </ul>