Migrate extension notifications to the new NotificationDisplayService

chrome/browser/notifications/stub_notification_display_service.h

Index: chrome/browser/notifications/stub_notification_display_service.h
diff --git a/chrome/browser/notifications/stub_notification_display_service.h b/chrome/browser/notifications/stub_notification_display_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..e87800c34a4b3175419b85803055c7dbce18cfc4
--- /dev/null
+++ b/chrome/browser/notifications/stub_notification_display_service.h
@@ -0,0 +1,57 @@
+// 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.
+
+#ifndef CHROME_BROWSER_NOTIFICATIONS_STUB_NOTIFICATION_DISPLAY_SERVICE_H_
+#define CHROME_BROWSER_NOTIFICATIONS_STUB_NOTIFICATION_DISPLAY_SERVICE_H_
+
+#include <memory>
+#include <utility>
+#include <vector>
+
+#include "base/macros.h"
+#include "chrome/browser/notifications/notification.h"
+#include "chrome/browser/notifications/notification_common.h"
+#include "chrome/browser/notifications/notification_display_service.h"
+
+// Implementation of the NotificationDisplayService interface that can be used
+// for testing purposes. Supports additional methods enabling instrumenting the
+// faked underlying notification system.
+class StubNotificationDisplayService : public NotificationDisplayService {
+ public:
+  // Factory function to be used with NotificationDisplayServiceFactory's
+  // SetTestingFactory method, overriding the default display service.
+  static std::unique_ptr<KeyedService> FactoryForTests(
+      content::BrowserContext* browser_context);
+
+  StubNotificationDisplayService();
+  ~StubNotificationDisplayService() override;
+
+  // Removes the notification identified by |notification_id|.
+  void RemoveNotification(NotificationCommon::Type notification_type,
+                          const std::string& notification_id,
+                          bool by_user);
+
+  // Removes all notifications shown by this display service.
+  void RemoveAllNotifications(NotificationCommon::Type notification_type,
+                              bool by_user);
+
+  // NotificationDisplayService implementation:
+  void Display(NotificationCommon::Type notification_type,
+               const std::string& notification_id,
+               const Notification& notification) override;
+  void Close(NotificationCommon::Type notification_type,
+             const std::string& notification_id) override;
+  void GetDisplayed(
+      const DisplayedNotificationsCallback& callback) const override;
+
+ private:
+  // Data to store for a notification that's being shown through this service.
+  using NotificationData = std::pair<NotificationCommon::Type, Notification>;
+
+  std::vector<NotificationData> notifications_;
+
+  DISALLOW_COPY_AND_ASSIGN(StubNotificationDisplayService);
+};
+
+#endif  // CHROME_BROWSER_NOTIFICATIONS_STUB_NOTIFICATION_DISPLAY_SERVICE_H_