Restart running apps when chrome restarts.

chrome/browser/sessions/app_restore_service.h

+// Copyright (c) 2012 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_SESSIONS_APP_RESTORE_SERVICE_H_
+#define CHROME_BROWSER_SESSIONS_APP_RESTORE_SERVICE_H_
+
+#include "chrome/browser/profiles/profile_keyed_service.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+
+#include <list>
+#include <string>
+#include <vector>
+
+class PrefService;
+class Profile;
+
+namespace extensions {
+class ExtensionHost;
+}
+
+// Tracks what apps need to be restarted when the browser restarts.

[Mihai Parparita -not on Chrome, 2012/09/04 04:14:48]

Does it make sense for this to be in chrome/browser/sessions? It doesn't seem to
be using any session-related code. chrome/browser/extensions may be more
appropriate.

[koz (OOO until 15th September), 2012/09/04 07:10:20]

Done.

+class AppRestoreService : public ProfileKeyedService,
+                          public content::NotificationObserver {
+ public:
+  explicit AppRestoreService(Profile* profile);
+
+  // Dispatches the app.runtime.onRestarted event to apps that were running in
+  // the last session.
+  void RestoreApps();
+
+  // Dispatches the app.runtime.onRestarted event to the apps identified by the
+  // extension ids in |apps|.
+  void RestartApps(std::list<std::string>& apps);

[Mihai Parparita -not on Chrome, 2012/09/04 04:14:48]

This appears to be unused/undefined.

[koz (OOO until 15th September), 2012/09/04 07:10:20]

Done.

+
+  // content::NotificationObserver.
+  virtual void Observe(int type,

[Mihai Parparita -not on Chrome, 2012/09/04 04:14:48]

Needs OVERRIDE (also, it could be private).

[koz (OOO until 15th September), 2012/09/04 07:10:20]

Done.

+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details);
+
+  static void RegisterUserPrefs(PrefService* prefService);
+
+ private:
+  void RecordAppStart(const std::string& extension_id);
+  void RecordAppStop(const std::string& extension_id);
+  void RestoreApp(const std::string& extension_id);
+
+  content::NotificationRegistrar registrar_;
+  Profile* profile_;
+};
+
+#endif  // CHROME_BROWSER_SESSIONS_APP_RESTORE_SERVICE_H_