Send GCM id to DMServer

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 980 matching lines @@
 // Response from the server to update device attributes (asset id and location).
 message DeviceAttributeUpdateResponse {
   enum ResultType {
     ATTRIBUTE_UPDATE_ERROR = 0;
     ATTRIBUTE_UPDATE_SUCCESS = 1;
   }
 
   optional ResultType result = 1;
 }
 
+// Sent by the client to server to update the mapping from GCM id to DM token
+// on the server side.
+message GcmIdMappingRequest {
+  optional string gcm_id = 1;
+}
+
+// Response for GcmIdMappingRequest, an empty message for now.
+message GcmIdMappingResponse {
+}
+
 // Request from the DMAgent on the device to the DMServer.  This is
 // container for all requests from device to server.  The overall HTTP
 // request MUST be in the following format:
 //
 // * HTTP method is POST
 // * Data mime type is application/x-protobuffer
 // * HTTP parameters are (all required, all case sensitive):
 //   * request: MUST BE one of
 //     * api_authorization
 //     * cert_upload
 //     * check_device_pairing
 //     * device_pairing
 //     * device_state_retrieval
 //     * enterprise_check
 //     * ping
 //     * policy
 //     * register
 //     * status
 //     * unregister
 //     * remote_commands
 //     * attribute_update_permission
 //     * attribute_update

[jinzhang1, 2015/07/28 18:56:17]

Please add a comment here to reflect the newly added request type.

 //
 //   * devicetype: MUST BE "1" for Android or "2" for Chrome OS.
 //   * apptype: MUST BE Android or Chrome.
 //   * deviceid: MUST BE no more than 64-char in [\x21-\x7E].
 //   * agent: MUST BE a string of characters.
 // * HTTP Authorization header MUST be in the following formats:
 //   * For register and ping requests
 //     Authorization: GoogleLogin auth=<auth cookie for Mobile Sync>
 //
 //   * For unregister, policy, status, cert_upload and remote commands requests
@@ skipping 58 matching lines @@
   // Remote command fetching.
   optional DeviceRemoteCommandRequest remote_command_request = 13;
 
   // Check permission for updating device attribute.
   optional DeviceAttributeUpdatePermissionRequest
       device_attribute_update_permission_request = 14;
 
   // Update device attribute.
   optional DeviceAttributeUpdateRequest device_attribute_update_request
       = 15;
+
+  // Update the GCM id to DM token mapping.
+  optional GcmIdMappingRequest gcm_id_mapping_request = 16;
 }
 
 // Response from server to device.
 //
 // The server uses the following numbers as HTTP status codes
 // to report top-level errors.
 //
 // 200 OK: valid response is returned to client.
 // 400 Bad Request: invalid argument.
 // 401 Unauthorized: invalid auth cookie or DM token.
@@ skipping 44 matching lines @@
 
   // Response to remote command request.
   optional DeviceRemoteCommandResponse remote_command_response = 14;
 
   // Response to check device attribute update permission.
   optional DeviceAttributeUpdatePermissionResponse
       device_attribute_update_permission_response = 15;
 
   // Response to update device attribute.
   optional DeviceAttributeUpdateResponse device_attribute_update_response = 16;
+
+  // Response to GCM id mapping request.
+  optional GcmIdMappingResponse gcm_id_mapping_response = 17;
 }