DevTools: migrate UI.ListWidget icons over to UI.Icon

third_party/WebKit/Source/devtools/front_end/ui/ListWidget.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.
 /**
  * @unrestricted
  */
 UI.ListWidget = class extends UI.VBox {
   /**
    * @param {!UI.ListWidget.Delegate} delegate
    */
@@ skipping 99 matching lines @@
   /**
    * @param {*} item
    * @param {!Element} element
    * @return {!Element}
    */
   _createControls(item, element) {
     var controls = createElementWithClass('div', 'controls-container fill');
     controls.createChild('div', 'controls-gradient');
     var buttons = controls.createChild('div', 'controls-buttons');
 
-    var editButton = buttons.createChild('div', 'edit-button');
+    var editButton = UI.Icon.create('largeicon-edit', 'edit-button');
+    buttons.appendChild(editButton);
     editButton.title = Common.UIString('Edit');
     editButton.addEventListener('click', onEditClicked.bind(this), false);
 
-    var removeButton = buttons.createChild('div', 'remove-button');
+    var removeButton = UI.Icon.create('largeicon-trash-bin', 'remove-button');
+    buttons.appendChild(removeButton);
     removeButton.title = Common.UIString('Remove');
     removeButton.addEventListener('click', onRemoveClicked.bind(this), false);
 
     return controls;
 
     /**
      * @param {!Event} event
      * @this {UI.ListWidget}
      */
     function onEditClicked(event) {
@@ skipping 264 matching lines @@
 
   _cancelClicked() {
     var cancel = this._cancel;
     this._commit = null;
     this._cancel = null;
     this._item = null;
     this._index = -1;
     cancel();
   }
 };