Add SystemTrayObservers

ash/system/tray/system_tray_notifier.h

Index: ash/system/tray/system_tray_notifier.h
diff --git a/ash/system/tray/system_tray_notifier.h b/ash/system/tray/system_tray_notifier.h
new file mode 100644
index 0000000000000000000000000000000000000000..b7551674c646ae823ecd88b1275a6333ed2f3905
--- /dev/null
+++ b/ash/system/tray/system_tray_notifier.h
@@ -0,0 +1,117 @@
+// 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 ASH_SYSTEM_TRAY_SYSTEM_TRAY_NOTIFIER_H_
+#define ASH_SYSTEM_TRAY_SYSTEM_TRAY_NOTIFIER_H_
+
+#include <string>
+#include <vector>
+
+#include "ash/ash_export.h"
+#include "ash/system/audio/audio_observer.h"
+#include "ash/system/bluetooth/bluetooth_observer.h"
+#include "ash/system/brightness/brightness_observer.h"
+#include "ash/system/chromeos/network/network_observer.h"
+#include "ash/system/chromeos/network/sms_observer.h"
+#include "ash/system/date/clock_observer.h"
+#include "ash/system/drive/drive_observer.h"
+#include "ash/system/ime/ime_observer.h"
+#include "ash/system/locale/locale_observer.h"
+#include "ash/system/logout_button/logout_button_observer.h"
+#include "ash/system/power/power_status_observer.h"
+#include "ash/system/tray_accessibility.h"
+#include "ash/system/tray_caps_lock.h"
+#include "ash/system/user/update_observer.h"
+#include "ash/system/user/user_observer.h"
+#include "base/observer_list.h"
+
+#if defined(OS_CHROMEOS)
+#include "ash/system/chromeos/network/network_observer.h"
+#include "ash/system/chromeos/network/sms_observer.h"
+#endif
+
+namespace ash {
+
+class ASH_EXPORT SystemTrayNotifier {
+public:
+  SystemTrayNotifier();
+  ~SystemTrayNotifier();
+
+  void AddAccessibilityObserver(AccessibilityObserver* observer);
+  void AddAudioObserver(AudioObserver* observer);
+  void AddBluetoothObserver(BluetoothObserver* observer);
+  void AddBrightnessObserver(BrightnessObserver* observer);
+  void AddCapsLockObserver(CapsLockObserver* observer);
+  void AddClockObserver(ClockObserver* observer);
+  void AddDriveObserver(DriveObserver* observer);
+  void AddIMEObserver(IMEObserver* observer);
+  void AddLocaleObserver(LocaleObserver* observer);
+  void AddLogoutButtonObserver(LogoutButtonObserver* observer);
+  void AddPowerStatusObserver(PowerStatusObserver* observer);
+  void AddUpdateObserver(UpdateObserver* observer);
+  void AddUserObserver(UserObserver* observer);
+#if defined(OS_CHROMEOS)
+  void AddNetworkObserver(NetworkObserver* observer);
+  void AddVpnObserver(NetworkObserver* observer);
+  void AddSmsObserver(SmsObserver* observer);
+#endif
+
+  void NotifyAccessibilityModeChanged(bool spoken_feedback_enabled);
+  void NotifyVolumeChanged(float level);
+  void NotifyMuteToggled();
+  void NotifyRefreshBluetooth();
+  void NotifyBluetoothDiscoveringChanged();
+  void NotifyBrightnessChanged(double level, bool user_initialted);
+  void NotifyCapsLockChanged(bool enabled, bool search_mapped_to_caps_lock);
+  void NotifyRefreshClock();
+  void NotifyDateFormatChanged();
+  void NotifyRefreshDrive(DriveOperationStatusList& list);
+  void NotifyRefreshIME(bool show_message);
+  void NotifyShowLoginButtonChanged(bool show_login_button);
+  void NotifyLocaleChanged(LocaleObserver::Delegate* delegate,
+                           const std::string& cur_locale,
+                           const std::string& from_locale,
+                           const std::string& to_locale);
+  void NotifyPowerStatusChanged(const PowerSupplyStatus& power_status);
+  void NotifyUpdateRecommended(UpdateObserver::UpdateSeverity severity);
+  void NotifyUserUpdate();
+#if defined(OS_CHROMEOS)
+  void NotifyRefreshNetwork(const NetworkIconInfo &info);
+  void NotifySetNetworkMessage(NetworkTrayDelegate* delegate,
+                               NetworkObserver::MessageType message_type,
+                               const string16& title,
+                               const string16& message,
+                               const std::vector<string16>& links);
+  void NotifyClearNetworkMessage(NetworkObserver::MessageType message_type);
+  void NotifyVpnRefreshNetwork(const NetworkIconInfo &info);
+  void NotifyWillToggleWifi();
+  void NotifyAddSmsMessage(const base::DictionaryValue& message);
+#endif
+
+ private:
+  ObserverList<AccessibilityObserver> accessibility_observers_;
+  ObserverList<AudioObserver> audio_observers_;
+  ObserverList<BluetoothObserver> bluetooth_observers_;
+  ObserverList<BrightnessObserver> brightness_observers_;
+  ObserverList<CapsLockObserver> caps_lock_observers_;
+  ObserverList<ClockObserver> clock_observers_;
+  ObserverList<DriveObserver> drive_observers_;
+  ObserverList<IMEObserver> ime_observers_;
+  ObserverList<LocaleObserver> locale_observers_;
+  ObserverList<LogoutButtonObserver> logout_button_observers_;
+  ObserverList<PowerStatusObserver> power_status_observers_;
+  ObserverList<UpdateObserver> update_observers_;
+  ObserverList<UserObserver> user_observers_;
+#if defined(OS_CHROMEOS)
+  ObserverList<NetworkObserver> network_observers_;
+  ObserverList<NetworkObserver> vpn_observers_;
+  ObserverList<SmsObserver> sms_observers_;
+#endif
+
+  DISALLOW_COPY_AND_ASSIGN(SystemTrayNotifier);
+};
+
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_NOTIFIER_H_