Remote fetch device status (attributes and logs) command

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 1043 matching lines @@
     COMMAND_ECHO_TEST = -1;
 
     // Reboot the device.
     DEVICE_REBOOT = 0;
 
     // Take a screenshot.
     DEVICE_SCREENSHOT = 1;
 
     // Set device volume.
     DEVICE_SET_VOLUME = 2;
+
+    // Force a refresh of device status (attributes).
+    DEVICE_FETCH_STATUS = 3;
   }
 
   // The command type.
   optional Type type = 1;
 
   // An opaque unique identifier for the command. The client processes
   // the commands in the order of the command list it receives.
   optional int64 command_id = 2;
 
   // The age of the command (in milliseconds) when it is sent from server to
   // client, defined as current_server_time - command_generated_time.
   optional int64 age_of_command = 3;
 
-  // Extra parameters for this command, expected to be a JSON string.
-  // If the command type is DEVICE_SCREENSHOT, the format of the JSON payload
-  // is: {"fileUploadUrl" : url_string}
+  // Extra parameters for this command, expected to be a JSON string. The
+  // following are the JSON payloads for their corresponding command type:
+  // DEVICE_SCREENSHOT: {"fileUploadUrl" : url_string}
+  // DEVICE_SET_VOLUME: {"volume" : 30}

[Andrew T Wilson (Slow), 2017/03/20 16:33:10]

This seems unrelated to this CL? maybe drive this comment in a separate CL?

   optional string payload = 4;
 }
 
 // This protobuf defines the execution result of a single remote command
 // which will be sent back to the server.
 message RemoteCommandResult {
   enum ResultType {
     RESULT_IGNORED = 0;  // The command was ignored as obsolete.
     RESULT_FAILURE = 1;  // The command could not be executed.
     RESULT_SUCCESS = 2;  // The command was successfully executed.
@@ skipping 390 matching lines @@
       check_android_management_response = 18;
 
   // Response to an Active Directory Play user enrollment request.
   optional ActiveDirectoryEnrollPlayUserResponse
       active_directory_enroll_play_user_response = 19;
 
   // Response to a Play activity request.
   optional ActiveDirectoryPlayActivityResponse
       active_directory_play_activity_response = 20;
 }