Add layout tests for ServiceWorker's notificationclose event.

components/html_viewer/web_test_delegate_impl.cc

 // Copyright 2015 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.
 
 #include "components/html_viewer/web_test_delegate_impl.h"
 
 #include <iostream>
 #include <utility>
 
 #include "base/time/time.h"
@@ skipping 176 matching lines @@
 
 void WebTestDelegateImpl::SetDatabaseQuota(int quota) {
   NOTIMPLEMENTED();
 }
 
 void WebTestDelegateImpl::SimulateWebNotificationClick(
     const std::string& title, int action_index) {
   NOTIMPLEMENTED();
 }
 
+void WebTestDelegateImpl::SimulateWebNotificationClose(
+    const std::string& title, bool by_user) {
+  NOTIMPLEMENTED();
+}
+
 void WebTestDelegateImpl::SetDeviceScaleFactor(float factor) {
   NOTIMPLEMENTED();
 }
 
 void WebTestDelegateImpl::EnableUseZoomForDSF() {
   NOTIMPLEMENTED();
 }
 
 void WebTestDelegateImpl::SetDeviceColorProfile(const std::string& name) {
   NOTIMPLEMENTED();
@@ skipping 156 matching lines @@
     test_runner::WebTestProxyBase* base) {
 }
 
 blink::WebPoint WebTestDelegateImpl::ConvertDIPToNative(
     const blink::WebPoint& point_in_dip) const {
   NOTIMPLEMENTED();
   return point_in_dip;
 }
 
 }  // namespace html_viewer