[DevTools] Remove methods on Common.Event.

third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js

Index: third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js b/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
index 3b0192f32b416a2e735a247cc1eb73efa1a16742..1b5f819b1113183beefdb5a39ef169559389432b 100644
--- a/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
+++ b/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
@@ -282,7 +282,7 @@ Timeline.TimelinePanel = class extends UI.Panel {
     if (Runtime.experiments.isEnabled('timelineRecordingPerspectives') &&
         perspectiveSetting.get() === Timeline.TimelinePanel.Perspectives.Load) {
       this._reloadButton = new UI.ToolbarButton(Common.UIString('Record & Reload'), 'largeicon-refresh');
-      this._reloadButton.addEventListener('click', () => SDK.targetManager.reloadPage());
+      this._reloadButton.addEventListener(UI.ToolbarButton.Events.Click, () => SDK.targetManager.reloadPage());
       this._panelToolbar.appendToolbarItem(this._reloadButton);
     } else {
       this._panelToolbar.appendToolbarItem(UI.Toolbar.createActionButton(this._toggleRecordAction));
@@ -290,7 +290,7 @@ Timeline.TimelinePanel = class extends UI.Panel {
 
     // Clear
     var clearButton = new UI.ToolbarButton(Common.UIString('Clear recording'), 'largeicon-clear');
-    clearButton.addEventListener('click', this._clear, this);
+    clearButton.addEventListener(UI.ToolbarButton.Events.Click, this._clear, this);
     this._panelToolbar.appendToolbarItem(clearButton);
 
     this._panelToolbar.appendSeparator();