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

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

 /*
  * Copyright (C) 2011 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 33 matching lines @@
     this._drawerSplitWidget.enableShowModeSaving();
     this._drawerSplitWidget.show(this.element);
 
     // Create drawer tabbed pane.
     this._drawerTabbedLocation =
         UI.viewManager.createTabbedLocation(this._showDrawer.bind(this, false), 'drawer-view', true);
     this._drawerTabbedLocation.enableMoreTabsButton();
     this._drawerTabbedPane = this._drawerTabbedLocation.tabbedPane();
     this._drawerTabbedPane.setMinimumSize(0, 27);
     var closeDrawerButton = new UI.ToolbarButton(Common.UIString('Close drawer'), 'largeicon-delete');
-    closeDrawerButton.addEventListener(UI.ToolbarButton.Events.Click, this._closeDrawer, this);
+    closeDrawerButton.addEventListener('click', this._closeDrawer.bind(this));
     this._drawerTabbedPane.rightToolbar().appendToolbarItem(closeDrawerButton);
     this._drawerSplitWidget.installResizer(this._drawerTabbedPane.headerElement());
     this._drawerSplitWidget.setSidebarWidget(this._drawerTabbedPane);
 
     // Create main area tabbed pane.
     this._tabbedLocation = UI.viewManager.createTabbedLocation(
         InspectorFrontendHost.bringToFront.bind(InspectorFrontendHost), 'panel', true, true);
     this._tabbedPane = this._tabbedLocation.tabbedPane();
     this._tabbedPane.registerRequiredCSS('ui/inspectorViewTabbedPane.css');
     this._tabbedPane.setTabSlider(true);
@@ skipping 247 matching lines @@
    * @return {boolean}
    */
   handleAction(context, actionId) {
     if (UI.inspectorView.drawerVisible())
       UI.inspectorView._closeDrawer();
     else
       UI.inspectorView._showDrawer(true);
     return true;
   }
 };