Implement the events for Background Fetch

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchedEvent.cpp

+// Copyright 2017 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 "modules/background_fetch/BackgroundFetchedEvent.h"
+
+#include "bindings/core/v8/ScriptState.h"
+#include "core/dom/DOMException.h"
+#include "modules/EventModulesNames.h"
+#include "modules/background_fetch/BackgroundFetchedEventInit.h"
+
+namespace blink {
+
+BackgroundFetchedEvent::BackgroundFetchedEvent(
+    const AtomicString& type,
+    const BackgroundFetchedEventInit& init)
+    : BackgroundFetchEvent(type, init) {}
+
+BackgroundFetchedEvent::~BackgroundFetchedEvent() = default;
+
+ScriptPromise BackgroundFetchedEvent::updateUI(ScriptState* scriptState,
+                                               String title) {
+  return ScriptPromise::rejectWithDOMException(
+      scriptState,
+      DOMException::create(NotSupportedError, "Not implemented yet."));
+}
+
+const AtomicString& BackgroundFetchedEvent::interfaceName() const {
+  return EventNames::BackgroundFetchedEvent;
+}
+
+}  // namespace blink