chromeos: Convert system tray session length limit to mojo

ash/system/tray/system_tray_notifier.cc

 // Copyright 2016 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"
 
 #include "ash/system/accessibility_observer.h"
 #include "ash/system/bluetooth/bluetooth_observer.h"
 #include "ash/system/date/clock_observer.h"
 #include "ash/system/enterprise/enterprise_domain_observer.h"
 #include "ash/system/ime/ime_observer.h"
 #include "ash/system/network/network_observer.h"
 #include "ash/system/network/network_portal_detector_observer.h"
 #include "ash/system/screen_security/screen_capture_observer.h"
 #include "ash/system/screen_security/screen_share_observer.h"
 #include "ash/system/session/last_window_closed_observer.h"
 #include "ash/system/session/logout_button_observer.h"
-#include "ash/system/session/session_length_limit_observer.h"
 #include "ash/system/status_area_focus_observer.h"
 #include "ash/system/tray_tracing.h"
 #include "ash/system/virtual_keyboard/virtual_keyboard_observer.h"
 
 namespace ash {
 
 SystemTrayNotifier::SystemTrayNotifier() {}
 
 SystemTrayNotifier::~SystemTrayNotifier() {}
 
@@ skipping 193 matching lines @@
     const base::string16& helper_name) {
   for (auto& observer : screen_share_observers_)
     observer.OnScreenShareStart(stop_callback, helper_name);
 }
 
 void SystemTrayNotifier::NotifyScreenShareStop() {
   for (auto& observer : screen_share_observers_)
     observer.OnScreenShareStop();
 }
 
-void SystemTrayNotifier::AddSessionLengthLimitObserver(
-    SessionLengthLimitObserver* observer) {
-  session_length_limit_observers_.AddObserver(observer);
-}
-
-void SystemTrayNotifier::RemoveSessionLengthLimitObserver(
-    SessionLengthLimitObserver* observer) {
-  session_length_limit_observers_.RemoveObserver(observer);
-}
-
-void SystemTrayNotifier::NotifySessionStartTimeChanged() {
-  for (auto& observer : session_length_limit_observers_)
-    observer.OnSessionStartTimeChanged();
-}
-
-void SystemTrayNotifier::NotifySessionLengthLimitChanged() {
-  for (auto& observer : session_length_limit_observers_)
-    observer.OnSessionLengthLimitChanged();
-}
-
 void SystemTrayNotifier::AddStatusAreaFocusObserver(
     StatusAreaFocusObserver* observer) {
   status_area_focus_observers_.AddObserver(observer);
 }
 
 void SystemTrayNotifier::RemoveStatusAreaFocusObserver(
     StatusAreaFocusObserver* observer) {
   status_area_focus_observers_.RemoveObserver(observer);
 }
 
@@ skipping 25 matching lines @@
   virtual_keyboard_observers_.RemoveObserver(observer);
 }
 
 void SystemTrayNotifier::NotifyVirtualKeyboardSuppressionChanged(
     bool suppressed) {
   for (auto& observer : virtual_keyboard_observers_)
     observer.OnKeyboardSuppressionChanged(suppressed);
 }
 
 }  // namespace ash