PlatformNotificationService layering cleanup.

chrome/browser/notifications/stub_notification_platform_bridge.h

+// Copyright 2016 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_PLATFORM_BRIDGE_H_
+#define CHROME_BROWSER_NOTIFICATIONS_STUB_NOTIFICATION_PLATFORM_BRIDGE_H_
+
+#include <unordered_map>
+#include <vector>
+
+#include "base/macros.h"
+#include "chrome/browser/notifications/notification.h"
+#include "chrome/browser/notifications/notification_platform_bridge.h"
+
+// Implementation of NotificationPlatformBridge used for tests.
+class StubNotificationPlatformBridge : public NotificationPlatformBridge {
+ public:
+  StubNotificationPlatformBridge();
+  ~StubNotificationPlatformBridge() override;
+
+  // Returns the notification being displayed at position |index|.
+  Notification GetNotificationAt(std::string profile_id, size_t index);
+
+  // NotificationPlatformBridge implementation.
+  void Display(const std::string& notification_id,
+               const std::string& profile_id,
+               bool incognito,
+               const Notification& notification) override;
+  void Close(const std::string& profile_id,
+             const std::string& notification_id) override;
+  bool GetDisplayed(const std::string& profile_id,
+                    bool incognito,
+                    std::set<std::string>* notifications) const override;
+  bool SupportsNotificationCenter() const override;
+
+ private:
+  // Map of profile Ids to list of notifications shown for said profile.
+  std::unordered_map<std::string, std::vector<Notification>> notifications_;
+
+  DISALLOW_COPY_AND_ASSIGN(StubNotificationPlatformBridge);
+};
+
+#endif  // CHROME_BROWSER_NOTIFICATIONS_STUB_NOTIFICATION_PLATFORM_BRIDGE_H_