mash: Introduce WmSystemTrayNotifier for //ash/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() {
 }
@@ skipping 44 matching lines @@
 }
 
 void SystemTrayNotifier::AddTracingObserver(TracingObserver* observer) {
   tracing_observers_.AddObserver(observer);
 }
 
 void SystemTrayNotifier::RemoveTracingObserver(TracingObserver* observer) {
   tracing_observers_.RemoveObserver(observer);
 }
 
-void SystemTrayNotifier::AddUpdateObserver(UpdateObserver* observer) {
-  update_observers_.AddObserver(observer);
-}
-
-void SystemTrayNotifier::RemoveUpdateObserver(UpdateObserver* observer) {
-  update_observers_.RemoveObserver(observer);
-}
-
 void SystemTrayNotifier::AddUserObserver(UserObserver* observer) {
   user_observers_.AddObserver(observer);
 }
 
 void SystemTrayNotifier::RemoveUserObserver(UserObserver* observer) {
   user_observers_.RemoveObserver(observer);
 }
 
 #if defined(OS_CHROMEOS)
 
@@ skipping 190 matching lines @@
     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::NotifyUpdateRecommended(const UpdateInfo& info) {
-  FOR_EACH_OBSERVER(
-      UpdateObserver, update_observers_, OnUpdateRecommended(info));
-}
-
 void SystemTrayNotifier::NotifyUserUpdate() {
   FOR_EACH_OBSERVER(UserObserver,
                     user_observers_,
                     OnUserUpdate());
 }
 
 void SystemTrayNotifier::NotifyUserAddedToSession() {
   FOR_EACH_OBSERVER(UserObserver,
                     user_observers_,
                     OnUserAddedToSession());
@@ skipping 92 matching lines @@
 void SystemTrayNotifier::NotifyVirtualKeyboardSuppressionChanged(
     bool suppressed) {
   FOR_EACH_OBSERVER(VirtualKeyboardObserver,
                     virtual_keyboard_observers_,
                     OnKeyboardSuppressionChanged(suppressed));
 }
 
 #endif  // OS_CHROMEOS
 
 }  // namespace ash