chromeos: Move device shutdown handling out of chrome into ash

ash/common/system/tray/system_tray_delegate.h

 // 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_COMMON_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_COMMON_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 14 matching lines @@
 
 namespace device {
 enum class BluetoothDeviceType;
 }
 
 namespace ash {
 struct IMEInfo;
 struct IMEPropertyInfo;
 
 class CustodianInfoTrayObserver;
-class ShutdownPolicyObserver;
 class SystemTray;
 class SystemTrayItem;
 
 using IMEInfoList = std::vector<IMEInfo>;
 using IMEPropertyInfoList = std::vector<IMEPropertyInfo>;
 
 struct ASH_EXPORT BluetoothDeviceInfo {
   BluetoothDeviceInfo();
   BluetoothDeviceInfo(const BluetoothDeviceInfo& other);
   ~BluetoothDeviceInfo();
@@ skipping 23 matching lines @@
 
   UpdateSeverity severity;
   bool update_required;
   bool factory_reset_required;
 };
 
 class CastConfigDelegate;
 class NetworkingConfigDelegate;
 class VPNDelegate;
 
-using RebootOnShutdownCallback = base::Callback<void(bool)>;
-
 // SystemTrayDelegate is intended for delegating tasks in the System Tray to the
 // application (e.g. Chrome). These tasks should be limited to application
 // (browser) specific tasks. For non application specific tasks, where possible,
 // components/, chromeos/, device/, etc., code should be used directly. If more
 // than one related method is being added, consider adding an additional
 // specific delegate (e.g. VPNDelegate).
 //
 // These methods should all have trivial default implementations for platforms
 // that do not implement the method (e.g. return false or nullptr). This
 // eliminates the need to propagate default implementations across the various
@@ skipping 125 matching lines @@
   // Returns true when the Search key is configured to be treated as Caps Lock.
   virtual bool IsSearchKeyMappedToCapsLock();
 
   // Adding observers that are notified when supervised info is being changed.
   virtual void AddCustodianInfoTrayObserver(
       CustodianInfoTrayObserver* observer);
 
   virtual void RemoveCustodianInfoTrayObserver(
       CustodianInfoTrayObserver* observer);
 
-  // Adds an observer whose |OnShutdownPolicyChanged| function is called when
-  // the |DeviceRebootOnShutdown| policy changes. If this policy is set to
-  // true, a device cannot be shut down anymore but only rebooted.
-  virtual void AddShutdownPolicyObserver(ShutdownPolicyObserver* observer);
-
-  virtual void RemoveShutdownPolicyObserver(ShutdownPolicyObserver* observer);
-
-  // Determines whether the device is automatically rebooted when shut down as
-  // specified by the device policy |DeviceRebootOnShutdown|. This function
-  // asynchronously calls |callback| once a trusted policy becomes available.
-  virtual void ShouldRebootOnShutdown(const RebootOnShutdownCallback& callback);
-
   // Returns VPNDelegate. May return nullptr.
   virtual VPNDelegate* GetVPNDelegate() const;
 
   // Creates a system tray item for display rotation lock.
   // TODO(jamescook): Remove this when mus has support for display management
   // and we have a DisplayManager equivalent. See http://crbug.com/548429
   virtual std::unique_ptr<SystemTrayItem> CreateRotationLockTrayItem(
       SystemTray* tray);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_