Device emulator: Replace usage of paper-dialog with cr-dialog.

chrome/browser/resources/chromeos/emulator/audio_settings.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.
 
 /** @enum {string} */ var AudioNodeType = {
   HEADPHONE: 'HEADPHONE',
   MIC: 'MIC',
   USB: 'USB',
   BLUETOOTH: 'BLUETOOTH',
   HDMI: 'HDMI',
@@ skipping 142 matching lines @@
    * This adds/modifies the audio node |nodes[currentEditIndex]| to/from the
    * AudioNodeList.
    * @param {model: {index: number}} e Event with a model containing
    *     the index in |nodes| to add.
    */
   insertEditedAudioNode: function(e) {
     // Insert a new node or update an existing node using all the properties
     // in |node|.
     var node = this.nodes[this.currentEditIndex];
     chrome.send('insertAudioNode', [node]);
+    this.$.editDialog.close();
   },
 
   /**
    * Removes the audio node with id |id|.
    * @param {model: {index: number}} e Event with a model containing
    *     the index in |nodes| to add.
    */
   removeAudioNode: function(e) {
     var info = this.nodes[e.model.index];
     chrome.send('removeAudioNode', [info.id]);
@@ skipping 19 matching lines @@
 
   /**
    * Shows a dialog to edit the selected node's properties.
    * @param {Event} event Contains event data. |event.model.index| is the index
    *     of the item which the target is contained in.
    */
   showEditDialog: function(event) {
     var index = event.model.index;
     this.currentEditIndex = index;
     this.currentEditableObject = this.nodes[index];
-    this.$.editDialog.toggle();
+    this.$.editDialog.showModal();
   },
 
   /**
    * Called by the WebUI which provides a list of nodes.
    * @param {!Array<!AudioNode>} nodeList A list of audio nodes.
    */
   updateAudioNodes: function(nodeList) {
     /** @type {!Array<!AudioNode>} */ var newNodeList = [];
     for (var i = 0; i < nodeList.length; ++i) {
       // Create a new audio node and add all the properties from |nodeList[i]|.
       var node = new AudioNode();
       Object.assign(node, nodeList[i]);
       newNodeList.push(node);
     }
     this.nodes = newNodeList;
   }
 });