[DevTools] Migrate checkbox label to a proper web component

third_party/WebKit/Source/devtools/front_end/ui/Toolbar.js

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 999 matching lines @@
 /**
  * @unrestricted
  */
 UI.ToolbarCheckbox = class extends UI.ToolbarItem {
   /**
    * @param {string} text
    * @param {string=} tooltip
    * @param {function()=} listener
    */
   constructor(text, tooltip, listener) {
-    super(UI.createCheckboxLabel(text));
+    super(UI.CheckboxLabel.create(text));
     this.element.classList.add('checkbox');
     this.inputElement = this.element.checkboxElement;
     if (tooltip)
       this.element.title = tooltip;
     if (listener)
       this.inputElement.addEventListener('click', listener, false);
   }
 
   /**
    * @return {boolean}
@@ skipping 23 matching lines @@
   /**
    * @param {!Common.Setting} setting
    * @param {string=} tooltip
    * @param {string=} alternateTitle
    */
   constructor(setting, tooltip, alternateTitle) {
     super(alternateTitle || setting.title() || '', tooltip);
     UI.SettingsUI.bindCheckbox(this.inputElement, setting);
   }
 };