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

third_party/WebKit/Source/devtools/front_end/sources/InplaceFormatterEditorAction.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 {Sources.SourcesView.EditorAction}
  * @unrestricted
  */
 Sources.InplaceFormatterEditorAction = class {
   /**
    * @param {!Common.Event} event
@@ skipping 26 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('Format'), 'largeicon-pretty-print');
-    this._button.addEventListener(UI.ToolbarButton.Events.Click, this._formatSourceInPlace, this);
+    this._button.addEventListener('click', this._formatSourceInPlace, this);
     this._updateButton(sourcesView.currentUISourceCode());
 
     return this._button;
   }
 
   /**
    * @param {?Workspace.UISourceCode} uiSourceCode
    * @return {boolean}
    */
   _isFormattable(uiSourceCode) {
     if (!uiSourceCode)
       return false;
     if (uiSourceCode.project().canSetFileContent())
       return true;
     if (Persistence.persistence.binding(uiSourceCode))
       return true;
     return uiSourceCode.contentType().isStyleSheet();
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
-  _formatSourceInPlace(event) {
+  _formatSourceInPlace() {
     var uiSourceCode = this._sourcesView.currentUISourceCode();
     if (!this._isFormattable(uiSourceCode))
       return;
 
     if (uiSourceCode.isDirty())
       contentLoaded.call(this, uiSourceCode.workingCopy());
     else
       uiSourceCode.requestContent().then(contentLoaded.bind(this));
 
     /**
@@ skipping 41 matching lines @@
       var range = decoration.range();
       var startLocation = sourceMapping.originalToFormatted(range.startLine, range.startColumn);
       var endLocation = sourceMapping.originalToFormatted(range.endLine, range.endColumn);
 
       uiSourceCode.addDecoration(
           new Common.TextRange(...startLocation, ...endLocation),
           /** @type {string} */ (decoration.type()), decoration.data());
     }
   }
 };