Add device policy to disallow shutdown - ash UI modifications

chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h

Index: chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h
diff --git a/chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h b/chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h
index 00cd890d5686a28208eddc1039e66a61a8a3ef15..6bb0addd64a97d9e68debe6d88aa5168ffeb7de3 100644
--- a/chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h
+++ b/chrome/browser/chromeos/power/session_state_controller_delegate_chromeos.h
@@ -8,20 +8,22 @@
 #include "ash/wm/lock_state_controller.h"
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/memory/weak_ptr.h"
 
 namespace chromeos {
 
 class SessionStateControllerDelegateChromeos
     : public ash::LockStateControllerDelegate {
  public:
-  SessionStateControllerDelegateChromeos() {}
-  virtual ~SessionStateControllerDelegateChromeos() {}
+  SessionStateControllerDelegateChromeos();
+  virtual ~SessionStateControllerDelegateChromeos();
 
  private:
   // SessionStateControllerDelegate implementation.
   virtual void RequestLockScreen() override;
-  virtual void RequestRestart() override;
-  virtual void RequestShutdown() override;
+  virtual void RequestShutdownOrRestart() override;
+
+  base::WeakPtrFactory<SessionStateControllerDelegateChromeos> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionStateControllerDelegateChromeos);
 };