Add RESTORE_MODE_DISABLED to RestoreMode

components/policy/proto/device_management_backend.proto

 // Copyright 2013 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.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package enterprise_management;
 
@@ skipping 601 matching lines @@
 // RESTORE_MODE_NONE.
 message DeviceStateRetrievalResponse {
   // Restorative action to take after device reset.
   enum RestoreMode {
     // No state restoration.
     RESTORE_MODE_NONE = 0;
     // Enterprise enrollment requested, but user may skip.
     RESTORE_MODE_REENROLLMENT_REQUESTED = 1;
     // Enterprise enrollment is enforced and cannot be skipped.
     RESTORE_MODE_REENROLLMENT_ENFORCED = 2;
+    // The device has been disabled by its owner. The device will show a warning
+    // screen and prevent the user from proceeding further.
+    RESTORE_MODE_DISABLED = 3;
   };
   // The server-indicated restore mode.
   optional RestoreMode restore_mode = 1 [default = RESTORE_MODE_NONE];
 
   // Primary domain the device is associated with.
   optional string management_domain = 2;
 
-  // The device is disabled and no logins are possible when this is set.
+  // State that is relevant only when the |restore_mode| is
+  // |RESTORE_MODE_DISABLED|.
   optional DisabledState disabled_state = 3;
 }
 
 // Sent by the client to the server to pair the Host device with the Controller
 // device. The HTTP request contains an end-user OAuth token and only succeeds
 // if both Host and Controller devices belong to the end-user domain.
 message DevicePairingRequest {
 
   // The device ID of the Host device.
   optional string host_device_id = 1;
@@ skipping 207 matching lines @@
 
   // Device-state retrieval.
   optional DeviceStateRetrievalResponse device_state_retrieval_response = 11;
 
   // Response to device pairing request.
   optional DevicePairingResponse device_pairing_response = 12;
 
   // Response to check device pairing request.
   optional CheckDevicePairingResponse check_device_pairing_response = 13;
 }