Revise ServiceWorker DevTools protocols.

content/browser/service_worker/service_worker_context_watcher.h

+// 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.
+
+#ifndef CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WATCHER_H_
+#define CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WATCHER_H_
+
+#include <vector>
+
+#include "base/callback.h"
+#include "base/containers/scoped_ptr_hash_map.h"
+#include "content/browser/service_worker/service_worker_context_observer.h"
+#include "content/browser/service_worker/service_worker_info.h"
+
+namespace content {
+
+class ServiceWorkerContextWrapper;
+
+// Used to monitor the status change of the ServiceWorker registrations and
+// versions in the ServiceWorkerContext from UI thread.
+class ServiceWorkerContextWatcher
+    : public ServiceWorkerContextObserver,
+      public base::RefCountedThreadSafe<ServiceWorkerContextWatcher> {
+ public:
+  typedef base::Callback<void(
+      const std::vector<ServiceWorkerRegistrationInfo>&)>
+      WorkerRegistrationUpdatedCallback;
+  typedef base::Callback<void(const std::vector<ServiceWorkerVersionInfo>&)>
+      WorkerVersionUpdatedCallback;
+  ServiceWorkerContextWatcher(
+      scoped_refptr<ServiceWorkerContextWrapper> context,
+      const WorkerRegistrationUpdatedCallback& registration_callback,
+      const WorkerVersionUpdatedCallback& version_callback);
+  void Start();
+  void Stop();
+
+ private:
+  friend class base::RefCountedThreadSafe<ServiceWorkerContextWatcher>;
+  ~ServiceWorkerContextWatcher() override;
+
+  void GetStoredRegistrationsOnIOThread();
+  void OnStoredRegistrationsOnIOThread(
+      const std::vector<ServiceWorkerRegistrationInfo>& stored_registrations);
+  void StopOnIOThread();
+
+  void StoreRegistrationInfo(
+      const ServiceWorkerRegistrationInfo& registration,
+      base::ScopedPtrHashMap<int64, ServiceWorkerRegistrationInfo>* info_map);
+  void StoreVersionInfo(const ServiceWorkerVersionInfo& version);
+
+  void SendRegistrationInfo(
+      int64 registration_id,
+      const GURL& pattern,
+      ServiceWorkerRegistrationInfo::DeleteFlag delete_flag);
+  void SendVersionInfo(const ServiceWorkerVersionInfo& version);
+
+  // ServiceWorkerContextObserver implements
+  void OnNewLiveRegistration(int64 registration_id,
+                             const GURL& pattern) override;
+  void OnNewLiveVersion(int64 version_id,
+                        int64 registration_id,
+                        const GURL& script_url) override;
+  void OnRunningStateChanged(
+      int64 version_id,
+      content::ServiceWorkerVersion::RunningStatus running_status) override;
+  void OnVersionStateChanged(
+      int64 version_id,
+      content::ServiceWorkerVersion::Status status) override;
+  void OnRegistrationStored(int64 registration_id,
+                            const GURL& pattern) override;
+  void OnRegistrationDeleted(int64 registration_id,
+                             const GURL& pattern) override;
+
+  base::ScopedPtrHashMap<int64, ServiceWorkerVersionInfo> version_info_map_;
+  scoped_refptr<ServiceWorkerContextWrapper> context_;
+  WorkerRegistrationUpdatedCallback registration_callback_;
+  WorkerVersionUpdatedCallback version_callback_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SERVICE_WORKER_SERVICE_WORKER_CONTEXT_WATCHER_H_