Add layout tests for ServiceWorker's notificationclose event.

content/shell/renderer/layout_test/blink_test_runner.h

 // Copyright (c) 2012 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 CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_RUNNER_H_
 #define CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_RUNNER_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 81 matching lines @@
   void ClearDevToolsLocalStorage() override;
   void ShowDevTools(const std::string& settings,
                     const std::string& frontend_url) override;
   void CloseDevTools() override;
   void EvaluateInWebInspector(long call_id, const std::string& script) override;
   std::string EvaluateInWebInspectorOverlay(const std::string& script) override;
   void ClearAllDatabases() override;
   void SetDatabaseQuota(int quota) override;
   void SimulateWebNotificationClick(const std::string& title,
                                     int action_index) override;
+  void SimulateWebNotificationClose(const std::string& title,
+                                    bool by_user) override;
   void SetDeviceScaleFactor(float factor) override;
   void SetDeviceColorProfile(const std::string& name) override;
   void EnableUseZoomForDSF() override;
   void SetBluetoothMockDataSet(const std::string& name) override;
   void SetBluetoothManualChooser() override;
   void GetBluetoothManualChooserEvents(
       const base::Callback<void(const std::vector<std::string>&)>& callback)
       override;
   void SendBluetoothManualChooserEvent(const std::string& event,
                                        const std::string& argument) override;
@@ skipping 92 matching lines @@
   bool focus_on_next_commit_;
 
   scoped_ptr<LeakDetector> leak_detector_;
 
   DISALLOW_COPY_AND_ASSIGN(BlinkTestRunner);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_LAYOUT_TEST_BLINK_TEST_RUNNER_H_