Use md-select instead of paper-dropdown-menu-light in internet page

chrome/browser/resources/settings/internet_page/network_nameservers.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 network nameserver options.
  */
 Polymer({
   is: 'network-nameservers',
 
@@ skipping 90 matching lines @@
     }
     this.setNameservers_(type, nameservers);
   },
 
   /**
    * @param {string} nameserversType
    * @param {!Array<string>} nameservers
    * @private
    */
   setNameservers_: function(nameserversType, nameservers) {
-    this.nameserversType_ = nameserversType;
     if (nameserversType == 'custom') {
       // Add empty entries for unset custom nameservers.
       for (let i = nameservers.length; i < this.MAX_NAMESERVERS; ++i)
         nameservers[i] = '';
     }
     this.nameservers_ = nameservers;
+    // Set nameserversType_ after dom-repeat has been stamped.
+    this.async(function() {
+      this.nameserversType_ = nameserversType;
+    }.bind(this));
   },
 
   /**
    * @param {string} type The nameservers type.
    * @return {string} The description for |type|.
    * @private
    */
   nameserverTypeDesc_: function(type) {
     // TODO(stevenjb): Translate.
     if (type == 'custom')
       return 'Custom name servers';
     if (type == 'google')
       return 'Google name servers';
     return 'Automatic name servers';
   },
 
   /**
    * @return {boolean} True if the nameservers are editable.
    * @private
    */
   canEdit_: function() {
     return this.editable && this.nameserversType_ == 'custom';
   },
 
   /**
    * Event triggered when the selected type changes. Updates nameservers and
    * sends the change value if necessary.
-   * @param {!{detail: !{selected: string}}} e
+   * @param {!Event} event
    * @private
    */
-  onTypeChange_: function(e) {
+  onTypeChange_: function(event) {
     if (this.nameserversType_ == 'custom')
       this.savedNameservers_ = this.nameservers_;
-    var type = e.detail.selected;
+    let target = /** @type {!HTMLSelectElement} */ (event.target);
+    let type = target.value;
     this.nameserversType_ = type;
     if (type == 'custom') {
       // Restore the saved nameservers.
       this.setNameservers_(type, this.savedNameservers_);
       // Only send custom nameservers if they are not empty.
       if (this.savedNameservers_.length == 0)
         return;
     }
     this.sendNameServers_();
   },
@@ skipping 40 matching lines @@
       });
     } else {
       // automatic
       this.fire('nameservers-change', {
         field: 'NameServersConfigType',
         value: CrOnc.IPConfigType.DHCP,
       });
     }
   },
 });