Add sound volume to device attribute reporting

chrome/browser/chromeos/policy/proto/chrome_device_policy.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 83 matching lines @@
   optional bool report_version_info = 1 [default = true];
   optional bool report_activity_times = 2 [default = true];
   optional bool report_boot_mode = 3 [default = true];
   optional bool report_location = 4 [default = false];
   optional bool report_network_interfaces = 5 [default = true];
   optional bool report_users = 6 [default = true];
   optional bool report_hardware_status = 7 [default = true];
   optional bool report_session_status = 8 [default = true];
   optional bool report_os_update_status = 10 [default = false];
   optional bool report_running_kiosk_app = 11 [default = false];
+  optional bool report_sound_volume = 12 [default = true];
 
   // Frequency to report device status, default to 3 hours.
   optional int64 device_status_frequency = 9 [default = 10800000];
 }
 
 message EphemeralUsersEnabledProto {
   // Determines whether users should be treated as ephemeral. In ephemeral users
   // mode, no cryptohome is created for the user, but a tmpfs mount is used
   // instead such that upon logout all user state is discarded.
   optional bool ephemeral_users_enabled = 1;
@@ skipping 717 matching lines @@
   optional DeviceQuirksDownloadEnabledProto quirks_download_enabled = 44;
   optional LoginVideoCaptureAllowedUrlsProto login_video_capture_allowed_urls =
       45;
   optional DeviceLoginScreenAppInstallListProto
       device_login_screen_app_install_list = 46;
   optional NetworkThrottlingEnabledProto network_throttling = 47;
   optional DeviceWallpaperImageProto device_wallpaper_image = 48;
   optional LoginScreenLocalesProto login_screen_locales = 49;
   optional LoginScreenInputMethodsProto login_screen_input_methods = 50;
 }