Updated device reporting code to report multiple samples of free RAM

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 597 matching lines @@
 
   // List of recent device users, in descending order by last login time.
   repeated DeviceUser user = 9;
 
   // Disk space + other info about mounted/connected volumes.
   repeated VolumeInfo volume_info = 10;
 
   // List of visible/configured networks
   repeated NetworkState network_state = 11;
 
-  // Samples of CPU utilization (0-100), sampled once every 60 seconds.
+  // Samples of CPU utilization (0-100), sampled once every 120 seconds.
   repeated int32 cpu_utilization_pct = 12;
 
   // Free RAM (unreliable due to GC).
-  optional int64 system_ram_free = 13;
+  optional int64 deprecated_system_ram_free = 13 [deprecated = true];
 
   // Total RAM on the device.
   optional int64 system_ram_total = 14;
+
+  // Samples of free RAM [in bytes] (unreliable due to GC).
+  repeated int64 system_ram_free = 15;
 }
 
 // Provides status information for an installed app/extension.
 message AppStatus {
   // ID of the installed app/extension
   required string app_id = 1;
 
   // Currently installed version of the app.
   required string extension_version = 2;
 
@@ skipping 358 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;
 }