MD Settings: Network: Check managed properties for known networks menu

chrome/browser/resources/settings/internet_page/internet_known_networks_page.html

 <link rel="import" href="chrome://resources/cr_elements/cr_action_menu/cr_action_menu.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
+<link rel="import" href="chrome://resources/cr_elements/policy/cr_policy_network_behavior.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="../settings_shared_css.html">
 
 <dom-module id="settings-internet-known-networks-page">
   <template>
     <style include="settings-shared"></style>
 
     <div class="settings-box first">
@@ skipping 41 matching lines @@
           <div class="separator"></div>
           <paper-icon-button icon="cr:more-vert"  tabindex$="[[tabindex]]"
               on-tap="onMenuButtonTap_" title="$i18n{moreActions}">
           </paper-icon-button>
         </div>
       </template>
     </div>
 
     <dialog id="dotsMenu" is="cr-action-menu">
       <button class="dropdown-item" role="option"
-          hidden="[[selectedIsPreferred_]]" on-tap="onAddPreferredTap_">
+          hidden="[[!showAddPreferred_]]" on-tap="onAddPreferredTap_">
         $i18n{knownNetworksMenuAddPreferred}
       </button>
       <button class="dropdown-item" role="option"
-          hidden="[[!selectedIsPreferred_]]" on-tap="onRemovePreferredTap_">
+          hidden="[[!showRemovePreferred_]]" on-tap="onRemovePreferredTap_">
         $i18n{knownNetworksMenuRemovePreferred}
       </button>
       <button class="dropdown-item" role="option" on-tap="onForgetTap_">
         $i18n{knownNetworksMenuForget}
       </button>
     </dialog>
 
   </template>
   <script src="internet_known_networks_page.js"></script>
 </dom-module>