Supports window teleports for notifications.

chrome/browser/ui/ash/multi_user/multi_user_notification_blocker_chromeos.h

+// Copyright 2013 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_UI_ASH_MULTI_USER_MULTI_USER_NOTIFICATION_BLOCKER_CHROMEOS_H_
+#define CHROME_BROWSER_UI_ASH_MULTI_USER_MULTI_USER_NOTIFICATION_BLOCKER_CHROMEOS_H_
+
+#include <map>
+#include <set>
+#include <string>
+
+#include "ui/message_center/notification_blocker.h"
+
+namespace chrome {
+class MultiUserWindowManager;
+}
+
+// A notification blocker for per-profile stream switching. Owned and controlled
+// by MultiUserWindowManagerChromeOS.
+class MultiUserNotificationBlockerChromeOS
+    : public message_center::NotificationBlocker {
+ public:
+  MultiUserNotificationBlockerChromeOS(
+      message_center::MessageCenter* message_center,
+      chrome::MultiUserWindowManager* multi_user_window_manager);
+  virtual ~MultiUserNotificationBlockerChromeOS();
+
+  // Checks the current desktop and update the list of users which owns windows
+  // on the current desktop.
+  void UpdateWindowOwners();
+
+  // Called by MultiUserWindowManager when the active user has changed.
+  void ActiveUserChanged(const std::string& user_id);
+
+  // message_center::NotificationBlocker overrides:
+  virtual bool ShouldShowNotification(
+      const message_center::NotifierId& notifier_id) const OVERRIDE;
+  virtual bool ShouldShowNotificationAsPopup(
+      const message_center::NotifierId& notifier_id) const OVERRIDE;
+
+ private:
+  // Returns true if this blocker is actively working.
+  bool IsActive() const;
+
+  chrome::MultiUserWindowManager* multi_user_window_manager_;  // Weak.
+  std::string active_user_id_;
+  std::map<std::string, bool> quiet_modes_;
+  std::set<std::string> current_user_ids_;
+
+  DISALLOW_COPY_AND_ASSIGN(MultiUserNotificationBlockerChromeOS);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_MULTI_USER_MULTI_USER_NOTIFICATION_BLOCKER_CHROMEOS_H_