[DevTools] Migrate checkbox label to a proper web component

third_party/WebKit/Source/devtools/front_end/network/NetworkConfigView.js

 // Copyright (c) 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.
 /**
  * @unrestricted
  */
 Network.NetworkConfigView = class extends UI.VBox {
   constructor() {
     super(true);
     /** @type {!Element} */
@@ skipping 101 matching lines @@
   }
 
   _createNetworkThrottlingSection() {
     var section = this._createSection(Common.UIString('Network throttling'), 'network-config-throttling');
     NetworkConditions.NetworkConditionsSelector.decorateSelect(
         /** @type {!HTMLSelectElement} */ (section.createChild('select', 'chrome-select')));
   }
 
   _createUserAgentSection() {
     var section = this._createSection(Common.UIString('User agent'), 'network-config-ua');
-    var checkboxLabel = UI.createCheckboxLabel(Common.UIString('Select automatically'), true);
+    var checkboxLabel = UI.CheckboxLabel.create(Common.UIString('Select automatically'), true);
     section.appendChild(checkboxLabel);
     this._autoCheckbox = checkboxLabel.checkboxElement;
     this._autoCheckbox.addEventListener('change', this._userAgentTypeChanged.bind(this));
 
     this._customUserAgentSetting = Common.settings.createSetting('customUserAgent', '');
     this._customUserAgentSetting.addChangeListener(this._customUserAgentChanged, this);
 
     this._customUserAgent = section.createChild('div', 'network-config-ua-custom');
     this._customSelectAndInput = Network.NetworkConfigView.createUserAgentSelectAndInput();
     this._customSelectAndInput.select.classList.add('chrome-select');
@@ skipping 221 matching lines @@
         value: 'UCWEB/2.0 (iPad; U; CPU OS 7_1 like Mac OS X; en; iPad3,6) U2/1.0.0 UCBrowser/9.3.1.344'
       },
       {
         title: 'UC Browser \u2014 Windows Phone',
         value:
             'NokiaX2-02/2.0 (11.79) Profile/MIDP-2.1 Configuration/CLDC-1.1 Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2;.NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2) UCBrowser8.4.0.159/70/352'
       }
     ]
   }
 ];