chromeos: Move device shutdown handling out of chrome into ash

chrome/browser/ui/ash/system_tray_delegate_chromeos.h

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.h
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.h b/chrome/browser/ui/ash/system_tray_delegate_chromeos.h
index 90f776c773746f7dc8e25d61f2cd929347b64e8b..822a69df04e4e8457d6ab8f463cda4ddb1be7693 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.h
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.h
@@ -23,7 +23,6 @@
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
-#include "chrome/browser/chromeos/settings/shutdown_policy_handler.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/supervised_user/supervised_user_service_observer.h"
 #include "chrome/browser/ui/browser_list_observer.h"
@@ -65,7 +64,6 @@ class SystemTrayDelegateChromeOS
       public extensions::AppWindowRegistry::Observer,
       public user_manager::UserManager::UserSessionStateObserver,
       public SupervisedUserServiceObserver,
-      public ShutdownPolicyHandler::Delegate,
       public input_method::InputMethodManager::ImeMenuObserver {
  public:
   SystemTrayDelegateChromeOS();
@@ -118,12 +116,6 @@ class SystemTrayDelegateChromeOS
       ash::CustodianInfoTrayObserver* observer) override;
   void RemoveCustodianInfoTrayObserver(
       ash::CustodianInfoTrayObserver* observer) override;
-  void AddShutdownPolicyObserver(
-      ash::ShutdownPolicyObserver* observer) override;
-  void RemoveShutdownPolicyObserver(
-      ash::ShutdownPolicyObserver* observer) override;
-  void ShouldRebootOnShutdown(
-      const ash::RebootOnShutdownCallback& callback) override;
   ash::VPNDelegate* GetVPNDelegate() const override;
   std::unique_ptr<ash::SystemTrayItem> CreateRotationLockTrayItem(
       ash::SystemTray* tray) override;
@@ -221,9 +213,6 @@ class SystemTrayDelegateChromeOS
   void OnAccessibilityStatusChanged(
       const AccessibilityStatusEventDetails& details);
 
-  // Overridden from ShutdownPolicyObserver::Delegate.
-  void OnShutdownPolicyChanged(bool reboot_on_shutdown) override;
-
   // input_method::InputMethodManager::ImeMenuObserver:
   void ImeMenuActivationChanged(bool is_active) override;
   void ImeMenuListChanged() override;
@@ -256,14 +245,11 @@ class SystemTrayDelegateChromeOS
   std::unique_ptr<ash::CastConfigDelegate> cast_config_delegate_;
   std::unique_ptr<ash::NetworkingConfigDelegate> networking_config_delegate_;
   std::unique_ptr<AccessibilityStatusSubscription> accessibility_subscription_;
-  std::unique_ptr<ShutdownPolicyHandler> shutdown_policy_handler_;
   std::unique_ptr<ash::VPNDelegate> vpn_delegate_;
 
   base::ObserverList<ash::CustodianInfoTrayObserver>
       custodian_info_changed_observers_;
 
-  base::ObserverList<ash::ShutdownPolicyObserver> shutdown_policy_observers_;
-
   base::WeakPtrFactory<SystemTrayDelegateChromeOS> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegateChromeOS);