DevTools: use shorthand syntax in interface definitions.

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 208 matching lines @@
  * @interface
  */
 UI.ListWidget.Delegate = function() {};
 
 UI.ListWidget.Delegate.prototype = {
   /**
    * @param {*} item
    * @param {boolean} editable
    * @return {!Element}
    */
-  renderItem: function(item, editable) {},
+  renderItem(item, editable) {},
 
   /**
    * @param {*} item
    * @param {number} index
    */
-  removeItemRequested: function(item, index) {},
+  removeItemRequested(item, index) {},
 
   /**
    * @param {*} item
    * @return {!UI.ListWidget.Editor}
    */
-  beginEdit: function(item) {},
+  beginEdit(item) {},
 
   /**
    * @param {*} item
    * @param {!UI.ListWidget.Editor} editor
    * @param {boolean} isNew
    */
-  commitEdit: function(item, editor, isNew) {}
+  commitEdit(item, editor, isNew) {}
 };
 
 /**
  * @unrestricted
  */
 UI.ListWidget.Editor = class {
   constructor() {
     this.element = createElementWithClass('div', 'editor-container');
     this.element.addEventListener('keydown', onKeyDown.bind(null, isEscKey, this._cancelClicked.bind(this)), false);
     this.element.addEventListener('keydown', onKeyDown.bind(null, isEnterKey, this._commitClicked.bind(this)), false);
@@ skipping 140 matching lines @@
 
   _cancelClicked() {
     var cancel = this._cancel;
     this._commit = null;
     this._cancel = null;
     this._item = null;
     this._index = -1;
     cancel();
   }
 };