MD Settings: hide people section when signin is disabled (e.g. by policy)

chrome/browser/resources/settings/basic_page/basic_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="/appearance_page/appearance_page.html">
 <link rel="import" href="/search_page/search_page.html">
 <link rel="import" href="/settings_page/main_page_behavior.html">
 <link rel="import" href="/settings_page/settings_page_visibility.html">
 <link rel="import" href="/settings_page/settings_section.html">
 <link rel="import" href="/on_startup_page/on_startup_page.html">
 <link rel="import" href="/people_page/people_page.html">
 <link rel="import" href="/reset_page/reset_profile_banner.html">
 <link rel="import" href="/settings_page_css.html">
@@ skipping 12 matching lines @@
     <style include="settings-page-styles"></style>
     <div>
       <template is="dom-if" if="[[showResetProfileBanner_]]">
         <settings-reset-profile-banner on-reset-done="onResetDone_">
         </settings-reset-profile-banner>
       </template>
 <if expr="chromeos">
       <template is="dom-if" if="[[showPage(pageVisibility.internet)]]" restamp>
         <settings-section page-title="$i18n{internetPageTitle}"
             section="internet">
-          <settings-internet-page>
-          </settings-internet-page>
+          <settings-internet-page></settings-internet-page>
         </settings-section>
       </template>
 </if>
       <template is="dom-if" if="[[showPage(pageVisibility.people)]]" restamp>
-        <settings-section page-title="$i18n{peoplePageTitle}" section="people">
-          <settings-people-page prefs="{{prefs}}"></settings-people-page>
+        <settings-section page-title="$i18n{peoplePageTitle}" section="people"
+            hidden="[[!syncStatus_.signinAllowed]]">
+          <settings-people-page prefs="{{prefs}}" sync-status="{{syncStatus_}}">
+          </settings-people-page>
         </settings-section>
       </template>
       <template is="dom-if" if="[[showPage(pageVisibility.appearance)]]"
           restamp>
         <settings-section page-title="$i18n{appearancePageTitle}"
             section="appearance">
           <settings-appearance-page prefs="{{prefs}}"
               page-visibility="[[pageVisibility.appearance]]">
           </settings-appearance-page>
         </settings-section>
@@ skipping 22 matching lines @@
       <template is="dom-if" if="[[showPage(pageVisibility.onStartup)]]" restamp>
         <settings-section page-title="$i18n{onStartup}" section="onStartup">
           <settings-on-startup-page prefs="{{prefs}}">
           </settings-on-startup-page>
         </settings-section>
       </template>
     </div>
   </template>
   <script src="basic_page.js"></script>
 </dom-module>