Implement a RenderFrame-less path for Web Notifications.

content/child/notifications/notification_manager.h

+// Copyright 2014 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_CHILD_NOTIFICATIONS_NOTIFICATION_MANAGER_H_
+#define CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_MANAGER_H_
+
+#include <map>
+
+#include "base/memory/ref_counted.h"
+#include "content/child/notifications/notification_dispatcher.h"
+#include "content/child/worker_task_runner.h"
+#include "third_party/WebKit/public/platform/WebNotificationManager.h"
+
+class SkBitmap;
+
+namespace content {
+
+class ThreadSafeSender;
+
+class NotificationManager : public blink::WebNotificationManager,
+                            public WorkerTaskRunner::Observer {
+ public:
+  ~NotificationManager() override;
+
+  // |thread_safe_sender| and |notification_dispatcher| are used if
+  // calling this leads to construction.
+  static NotificationManager* ThreadSpecificInstance(
+      ThreadSafeSender* thread_safe_sender,
+      NotificationDispatcher* notification_dispatcher);
+
+  // WorkerTaskRunner::Observer implementation.
+  void OnWorkerRunLoopStopped() override;
+
+  // blink::WebNotificationManager implementation.
+  virtual void show(const blink::WebSerializedOrigin& origin,
+                    const blink::WebNotificationData& notification_data,
+                    blink::WebNotificationDelegate* delegate);
+  virtual void close(blink::WebNotificationDelegate* delegate);
+  virtual void notifyDelegateDestroyed(
+      blink::WebNotificationDelegate* delegate);
+  virtual blink::WebNotificationPermission checkPermission(
+      const blink::WebSerializedOrigin& origin);
+
+  // Called by the NotificationDispatcher.
+  bool OnMessageReceived(const IPC::Message& message);
+
+ private:
+  NotificationManager(
+      ThreadSafeSender* thread_safe_sender,
+      NotificationDispatcher* notification_dispatcher);
+
+  scoped_refptr<ThreadSafeSender> thread_safe_sender_;
+  scoped_refptr<NotificationDispatcher> notification_dispatcher_;
+
+  // Map to store the delegate associated with a notification request Id.
+  std::map<int, blink::WebNotificationDelegate*> active_notifications_;
+
+  DISALLOW_COPY_AND_ASSIGN(NotificationManager);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_MANAGER_H_