Settings: Internet: Update proxy controlled indicator and fields.

ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js

Index: ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js
diff --git a/ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js b/ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js
index ec3f38e341eb957cc73e2f48b33ab9e355dd10dd..32b27beaead50e0f337b6a947a6b7f080e473be2 100644
--- a/ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js
+++ b/ui/webui/resources/cr_elements/policy/cr_policy_network_behavior.js
@@ -31,6 +31,26 @@ var CrPolicyNetworkBehavior = {
 
   /**
    * @param {!CrOnc.ManagedProperty|undefined} property
+   * @return {boolean} True if the network property is controlled by an
+   *     extension.
+   */
+  isExtensionControlled: function(property) {
+    return typeof property == 'object' &&
+        property.Effective == 'ActiveExtension';
+  },
+
+  /**
+   * @param {!CrOnc.ManagedProperty|undefined} property
+   * @return {boolean} True if the network property is controlled by a policy
+   *     or an extension.
+   */
+  isControlled: function(property) {
+    return this.isNetworkPolicyControlled(property) ||
+        this.isExtensionControlled(property);
+  },
+
+  /**
+   * @param {!CrOnc.ManagedProperty|undefined} property
    * @return {boolean} True if the network property is enforced by a policy.
    */
   isNetworkPolicyEnforced: function(property) {