Revert of [DevTools] Remove methods on Common.Event.

third_party/WebKit/Source/devtools/front_end/resources/CookieItemsView.js

 /*
  * Copyright (C) 2009 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 20 matching lines @@
  * @unrestricted
  */
 Resources.CookieItemsView = class extends UI.SimpleView {
   constructor(treeElement, cookieDomain) {
     super(Common.UIString('Cookies'));
 
     this.element.classList.add('storage-view');
 
     this._deleteButton = new UI.ToolbarButton(Common.UIString('Delete'), 'largeicon-delete');
     this._deleteButton.setVisible(false);
-    this._deleteButton.addEventListener(UI.ToolbarButton.Events.Click, this._deleteButtonClicked, this);
+    this._deleteButton.addEventListener('click', this._deleteButtonClicked, this);
 
     this._clearButton = new UI.ToolbarButton(Common.UIString('Clear'), 'largeicon-clear');
     this._clearButton.setVisible(false);
-    this._clearButton.addEventListener(UI.ToolbarButton.Events.Click, this._clearButtonClicked, this);
+    this._clearButton.addEventListener('click', this._clearButtonClicked, this);
 
     this._refreshButton = new UI.ToolbarButton(Common.UIString('Refresh'), 'largeicon-refresh');
-    this._refreshButton.addEventListener(UI.ToolbarButton.Events.Click, this._refreshButtonClicked, this);
+    this._refreshButton.addEventListener('click', this._refreshButtonClicked, this);
 
     this._treeElement = treeElement;
     this._cookieDomain = cookieDomain;
 
     this._emptyWidget = new UI.EmptyWidget(
         cookieDomain ?
             Common.UIString('This site has no cookies.') :
             Common.UIString(
                 'By default cookies are disabled for local files.\nYou could override this by starting the browser with --enable-file-cookies command line flag.'));
     this._emptyWidget.show(this.element);
@@ skipping 90 matching lines @@
       }
     }
     return cookies;
   }
 
   clear() {
     this._cookiesTable.clear();
     this._update();
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
-  _clearButtonClicked(event) {
+  _clearButtonClicked() {
     this.clear();
   }
 
   _showDeleteButton() {
     this._deleteButton.setVisible(true);
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
-  _deleteButtonClicked(event) {
+  _deleteButtonClicked() {
     var selectedCookie = this._cookiesTable.selectedCookie();
     if (selectedCookie) {
       selectedCookie.remove();
       this._update();
     }
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
   _refreshButtonClicked(event) {
     this._update();
   }
 
   _contextMenu(event) {
     if (!this._cookies.length) {
       var contextMenu = new UI.ContextMenu(event);
       contextMenu.appendItem(Common.UIString('Refresh'), this._update.bind(this));
       contextMenu.show();
     }
   }
 };