MD Settings: Internet: Add/fix remaining policy items

chrome/browser/resources/settings/internet_page/network_proxy.js

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Polymer element for displaying and editing network proxy
  * values.
  */
 Polymer({
   is: 'network-proxy',
@@ skipping 318 matching lines @@
    */
   getProxySettingsTypeProperty_: function() {
     return /** @type {!CrOnc.ManagedProperty|undefined} */ (
         this.get('ProxySettings.Type', this.networkProperties));
   },
 
   /**
    * @return {boolean}
    * @private
    */
-  getShowNetworkPolicyIndicator_: function() {
+  shouldShowNetworkPolicyIndicator_: function() {
     let property = this.getProxySettingsTypeProperty_();
     return !!property && !this.isExtensionControlled(property) &&
         this.isNetworkPolicyEnforced(property);
   },
 
   /**
    * @return {boolean}
    * @private
    */
-  getShowPrefPolicyIndicator_: function() {
+  shouldShowExtensionIndicator_: function() {
     let property = this.getProxySettingsTypeProperty_();
     return !!property && this.isExtensionControlled(property);
   },
 
   /**
    * @param {!CrOnc.ManagedProperty} property
    * @return {boolean}
    * @private
    */
-  getShowAllowShared_: function(property) {
+  shouldShowAllowShared_: function(property) {
     return !this.isControlled(property) && this.isShared_();
   },
 
   /**
    * @param {!CrOnc.ManagedProperty|undefined} property
    * @return {boolean} Whether the property setting is enforced.
    * @private
    */
   isEditable_: function(property) {
     return this.editable && !this.isNetworkPolicyEnforced(property) &&
@@ skipping 12 matching lines @@
 
   /**
    * Used to check the editable state for proxy related UI that may or may
    * not be directly controlled by a policy. We use the enforced state of the
    * 'ProxySettings.Type' property for these controls.
    * @return {boolean} Whether the proxy control is editable.
    * @private
    */
   isProxyEditable_: function() {
     let property = this.getProxySettingsTypeProperty_();
-    return !!property && this.isEditable_(property);
+    return !property || this.isEditable_(property);
   },
 
   /**
    * @param {string} property The property to test
    * @param {string} value The value to test against
    * @return {boolean} True if property == value
    * @private
    */
   matches_: function(property, value) {
     return property == value;
@@ skipping 23 matching lines @@
    * Handles the shared proxy confirmation dialog 'Cancel' button or a cancel
    * event.
    * @private
    */
   onAllowSharedDialogCancel_: function() {
     /** @type {!SettingsCheckboxElement} */ (this.$.allowShared)
         .resetToPrefValue();
     this.$.confirmAllowSharedDialog.close();
   },
 });