Add layout tests for ServiceWorker's notificationclose event.

components/test_runner/web_test_delegate.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 #define COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 139 matching lines @@
   virtual std::string EvaluateInWebInspectorOverlay(
       const std::string& script) = 0;
 
   // Controls WebSQL databases.
   virtual void ClearAllDatabases() = 0;
   virtual void SetDatabaseQuota(int quota) = 0;
 
   // Controls Web Notifications.
   virtual void SimulateWebNotificationClick(const std::string& title,
                                             int action_index) = 0;
+  virtual void SimulateWebNotificationClose(const std::string& title,
+                                            bool by_user) = 0;
 
   // Controls the device scale factor of the main WebView for hidpi tests.
   virtual void SetDeviceScaleFactor(float factor) = 0;
 
   // Enable zoom-for-dsf option.
   virtual void EnableUseZoomForDSF() = 0;
 
   // Change the device color profile while running a layout test.
   virtual void SetDeviceColorProfile(const std::string& name) = 0;
 
@@ skipping 116 matching lines @@
   virtual void OnWebTestProxyBaseDestroy(WebTestProxyBase* proxy) = 0;
 
   // Convert the position in DIP to native coordinates.
   virtual blink::WebPoint ConvertDIPToNative(
       const blink::WebPoint& point_in_dip) const = 0;
 };
 
 }  // namespace test_runner
 
 #endif  // COMPONENTS_TEST_RUNNER_WEB_TEST_DELEGATE_H_