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

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

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 581 matching lines @@
       return null;
 
     this._paused = false;
 
     this._clearInterface();
     var target = UI.context.flavor(SDK.Target);
     return target ? SDK.DebuggerModel.fromTarget(target) : null;
   }
 
   /**
-   * @param {!Common.Event} event
+   * @return {boolean}
    */
-  _longResume(event) {
+  _longResume() {
     var debuggerModel = this._prepareToResume();
     if (!debuggerModel)
-      return;
+      return true;
 
     debuggerModel.skipAllPausesUntilReloadOrTimeout(500);
     debuggerModel.resume();
+    return true;
   }
 
   /**
    * @return {boolean}
    */
   _stepOver() {
     var debuggerModel = this._prepareToResume();
     if (!debuggerModel)
       return true;
 
@@ skipping 56 matching lines @@
   }
 
   /**
    * @return {!UI.Toolbar}
    */
   _createDebugToolbar() {
     var debugToolbar = new UI.Toolbar('scripts-debug-toolbar');
 
     var longResumeButton =
         new UI.ToolbarButton(Common.UIString('Resume with all pauses blocked for 500 ms'), 'largeicon-play');
-    longResumeButton.addEventListener(UI.ToolbarButton.Events.Click, this._longResume, this);
+    longResumeButton.addEventListener('click', this._longResume.bind(this), this);
     debugToolbar.appendToolbarItem(UI.Toolbar.createActionButton(this._togglePauseAction, [longResumeButton], []));
 
     debugToolbar.appendToolbarItem(UI.Toolbar.createActionButton(this._stepOverAction));
     debugToolbar.appendToolbarItem(UI.Toolbar.createActionButton(this._stepIntoAction));
     debugToolbar.appendToolbarItem(UI.Toolbar.createActionButton(this._stepOutAction));
     debugToolbar.appendSeparator();
     debugToolbar.appendToolbarItem(UI.Toolbar.createActionButton(this._toggleBreakpointsActiveAction));
 
     this._pauseOnExceptionButton = new UI.ToolbarToggle('', 'largeicon-pause-on-exceptions');
     this._pauseOnExceptionButton.addEventListener('click', this._togglePauseOnExceptions, this);
@@ skipping 620 matching lines @@
    */
   willHide() {
     UI.inspectorView.setDrawerMinimized(false);
     setImmediate(() => Sources.SourcesPanel.updateResizerAndSidebarButtons(Sources.SourcesPanel.instance()));
   }
 
   _showViewInWrapper() {
     this._view.show(this.element);
   }
 };