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

third_party/WebKit/Source/devtools/front_end/sources/ScriptFormatterEditorAction.js

 // Copyright 2014 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.
 /**
  * @implements {Bindings.DebuggerSourceMapping}
  * @unrestricted
  */
 Sources.FormatterScriptMapping = class {
   /**
    * @param {!SDK.DebuggerModel} debuggerModel
@@ skipping 176 matching lines @@
    */
   button(sourcesView) {
     if (this._button)
       return this._button;
 
     this._sourcesView = sourcesView;
     this._sourcesView.addEventListener(Sources.SourcesView.Events.EditorSelected, this._editorSelected.bind(this));
     this._sourcesView.addEventListener(Sources.SourcesView.Events.EditorClosed, this._editorClosed.bind(this));
 
     this._button = new UI.ToolbarButton(Common.UIString('Pretty print'), 'largeicon-pretty-print');
-    this._button.addEventListener(UI.ToolbarButton.Events.Click, this._toggleFormatScriptSource, this);
+    this._button.addEventListener('click', this._toggleFormatScriptSource, this);
     this._updateButton(sourcesView.currentUISourceCode());
 
     return this._button;
   }
 
   /**
    * @param {?Workspace.UISourceCode} uiSourceCode
    * @return {boolean}
    */
   _isFormatableScript(uiSourceCode) {
     if (!uiSourceCode)
       return false;
     if (uiSourceCode.project().canSetFileContent())
       return false;
     if (uiSourceCode.project().type() === Workspace.projectTypes.Formatter)
       return false;
     if (Persistence.persistence.binding(uiSourceCode))
       return false;
     return uiSourceCode.contentType().hasScripts();
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
-  _toggleFormatScriptSource(event) {
+  _toggleFormatScriptSource() {
     var uiSourceCode = this._sourcesView.currentUISourceCode();
     if (this._isFormatableScript(uiSourceCode))
       this._formatUISourceCodeScript(uiSourceCode);
   }
 
   /**
    * @param {!Workspace.UISourceCode} uiSourceCode
    * @param {!Workspace.UISourceCode} formattedUISourceCode
    * @param {!Sources.FormatterSourceMapping} mapping
    * @private
@@ skipping 148 matching lines @@
       var targets = SDK.targetManager.targets();
       for (var i = 0; i < targets.length; ++i) {
         var scriptMapping =
             /** @type {!Sources.FormatterScriptMapping} */ (this._scriptMappingByTarget.get(targets[i]));
         Bindings.debuggerWorkspaceBinding.setSourceMapping(targets[i], formattedUISourceCode, scriptMapping);
       }
       this._showIfNeeded(uiSourceCode, formattedUISourceCode, formatterMapping);
     }
   }
 };