mash: Migrate locale observer and notification to common.

ash/system/tray/system_tray_notifier.cc

 // 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.
 
 #include "ash/system/tray/system_tray_notifier.h"
 
 namespace ash {
 
 SystemTrayNotifier::SystemTrayNotifier() {
 }
 
 SystemTrayNotifier::~SystemTrayNotifier() {
 }
 
 void SystemTrayNotifier::AddAudioObserver(AudioObserver* observer) {
   audio_observers_.AddObserver(observer);
 }
 
 void SystemTrayNotifier::RemoveAudioObserver(AudioObserver* observer) {
   audio_observers_.RemoveObserver(observer);
 }
 
-void SystemTrayNotifier::AddLocaleObserver(LocaleObserver* observer) {
-  locale_observers_.AddObserver(observer);
-}
-
-void SystemTrayNotifier::RemoveLocaleObserver(LocaleObserver* observer) {
-  locale_observers_.RemoveObserver(observer);
-}
-
 void SystemTrayNotifier::AddTracingObserver(TracingObserver* observer) {
   tracing_observers_.AddObserver(observer);
 }
 
 void SystemTrayNotifier::RemoveTracingObserver(TracingObserver* observer) {
   tracing_observers_.RemoveObserver(observer);
 }
 
 void SystemTrayNotifier::AddUserObserver(UserObserver* observer) {
   user_observers_.AddObserver(observer);
@@ skipping 136 matching lines @@
       OnActiveInputNodeChanged());
 }
 
 void SystemTrayNotifier::NotifyTracingModeChanged(bool value) {
   FOR_EACH_OBSERVER(
       TracingObserver,
       tracing_observers_,
       OnTracingModeChanged(value));
 }
 
-void SystemTrayNotifier::NotifyLocaleChanged(
-    LocaleObserver::Delegate* delegate,
-    const std::string& cur_locale,
-    const std::string& from_locale,
-    const std::string& to_locale) {
-  FOR_EACH_OBSERVER(
-      LocaleObserver,
-      locale_observers_,
-      OnLocaleChanged(delegate, cur_locale, from_locale, to_locale));
-}
-
 void SystemTrayNotifier::NotifyUserUpdate() {
   FOR_EACH_OBSERVER(UserObserver,
                     user_observers_,
                     OnUserUpdate());
 }
 
 void SystemTrayNotifier::NotifyUserAddedToSession() {
   FOR_EACH_OBSERVER(UserObserver,
                     user_observers_,
                     OnUserAddedToSession());
@@ skipping 85 matching lines @@
 
 void SystemTrayNotifier::NotifyLastWindowClosed() {
   FOR_EACH_OBSERVER(LastWindowClosedObserver,
                     last_window_closed_observers_,
                     OnLastWindowClosed());
 }
 
 #endif  // OS_CHROMEOS
 
 }  // namespace ash