mash: Migrate tray date view to //ash/common types

ash/common/system/tray/system_tray_delegate.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/common/system/tray/system_tray_delegate.h"
 
 namespace ash {
 
 NetworkIconInfo::NetworkIconInfo()
     : connecting(false),
@@ skipping 150 matching lines @@
 
 void SystemTrayDelegate::SignOut() {
 }
 
 void SystemTrayDelegate::RequestLockScreen() {
 }
 
 void SystemTrayDelegate::RequestRestartForUpdate() {
 }
 
+void SystemTrayDelegate::RequestShutdown() {}
+
 void SystemTrayDelegate::GetAvailableBluetoothDevices(
     BluetoothDeviceList* list) {
 }
 
 void SystemTrayDelegate::BluetoothStartDiscovering() {
 }
 
 void SystemTrayDelegate::BluetoothStopDiscovering() {
 }
 
@@ skipping 98 matching lines @@
 
 void SystemTrayDelegate::ShouldRebootOnShutdown(
     const RebootOnShutdownCallback& callback) {
 }
 
 VPNDelegate* SystemTrayDelegate::GetVPNDelegate() const {
   return nullptr;
 }
 
 }  // namespace ash