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

third_party/WebKit/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js

Index: third_party/WebKit/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
diff --git a/third_party/WebKit/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js b/third_party/WebKit/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
index 40124cf3271548ba6b9125039a92c2097efeb11e..d688beee944aab227874c70a98ae64103b9a1266 100644
--- a/third_party/WebKit/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
+++ b/third_party/WebKit/Source/devtools/front_end/resources/ServiceWorkerCacheViews.js
@@ -21,7 +21,7 @@
     this._createEditorToolbar();
 
     this._refreshButton = new UI.ToolbarButton(Common.UIString('Refresh'), 'largeicon-refresh');
-    this._refreshButton.addEventListener(UI.ToolbarButton.Events.Click, this._refreshButtonClicked, this);
+    this._refreshButton.addEventListener('click', this._refreshButtonClicked, this);
 
     this._pageSize = 50;
     this._skipCount = 0;
@@ -45,27 +45,21 @@
     var editorToolbar = new UI.Toolbar('data-view-toolbar', this.element);
 
     this._pageBackButton = new UI.ToolbarButton(Common.UIString('Show previous page'), 'largeicon-play-back');
-    this._pageBackButton.addEventListener(UI.ToolbarButton.Events.Click, this._pageBackButtonClicked, this);
+    this._pageBackButton.addEventListener('click', this._pageBackButtonClicked, this);
     editorToolbar.appendToolbarItem(this._pageBackButton);
 
     this._pageForwardButton = new UI.ToolbarButton(Common.UIString('Show next page'), 'largeicon-play');
     this._pageForwardButton.setEnabled(false);
-    this._pageForwardButton.addEventListener(UI.ToolbarButton.Events.Click, this._pageForwardButtonClicked, this);
+    this._pageForwardButton.addEventListener('click', this._pageForwardButtonClicked, this);
     editorToolbar.appendToolbarItem(this._pageForwardButton);
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
-  _pageBackButtonClicked(event) {
+  _pageBackButtonClicked() {
     this._skipCount = Math.max(0, this._skipCount - this._pageSize);
     this._updateData(false);
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
-  _pageForwardButtonClicked(event) {
+  _pageForwardButtonClicked() {
     this._skipCount = this._skipCount + this._pageSize;
     this._updateData(false);
   }
@@ -134,9 +128,6 @@
     this._model.loadCacheData(this._cache, skipCount, pageSize, this._updateDataCallback.bind(this, skipCount));
   }
 
-  /**
-   * @param {!Common.Event} event
-   */
   _refreshButtonClicked(event) {
     this._updateData(true);
   }