WebUI: For cr-dialog, handle Enter keys in paper-inputs.

chrome/browser/resources/settings/internet_page/network_summary_item.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 the network state for a specific
  * type and a list of networks for that type.
  */
 
 /** @typedef {chrome.networkingPrivate.DeviceStateProperties} */
 var DeviceStateProperties;
 
 Polymer({
   is: 'network-summary-item',
 
-  behaviors: [Polymer.IronA11yKeysBehavior, I18nBehavior],
+  behaviors: [I18nBehavior],
 
   properties: {
     /**
      * Device state for the network type.
      * @type {!DeviceStateProperties|undefined}
      */
     deviceState: Object,
 
     /**
      * Network state for the active network.
@@ skipping 163 matching lines @@
    */
   onDeviceEnabledTap_: function(event) {
     var deviceIsEnabled = this.deviceIsEnabled_(this.deviceState);
     var type = this.deviceState ? this.deviceState.Type : '';
     this.fire(
         'device-enabled-toggled', {enabled: !deviceIsEnabled, type: type});
     // Make sure this does not propagate to onDetailsTap_.
     event.stopPropagation();
   },
 });