Add a new AssociationState DEPROVISIONED for cloud policy.

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 211 matching lines @@
   optional string device_id = 8;
 
   // Indicates which state this association with DMServer is in. This can be
   // used to tell the client that it is not receiving policy even though the
   // registration with the server is kept active.
   enum AssociationState {
     // Association is active and policy is pushed.
     ACTIVE = 0;
     // Association is alive, but the corresponding domain is not managed.
     UNMANAGED = 1;
+    // Client got dropped on the server side.
+    DEPROVISIONED = 2;
   }
   optional AssociationState state = 9 [default = ACTIVE];
 
   // Indicates if the the server cannot find a valid serial number for the
   // device.  If this flag is set, the device should send the valid serial
   // number with a device policy fetch request.  Note that this only
   // applies to device policy.
   optional bool valid_serial_number_missing = 10;
 
   // Indicates which public account or extension/plug-in this policy data is
@@ skipping 377 matching lines @@
 
   // Auto-enrollment detection response.
   optional DeviceAutoEnrollmentResponse auto_enrollment_response = 8;
 
   // EMCert upload response.
   optional DeviceCertUploadResponse cert_upload_response = 9;
 
   // Response to OAuth2 authorization code request.
   optional DeviceServiceApiAccessResponse service_api_access_response = 10;
 }