Add sound volume to device attribute reporting

chrome/browser/chromeos/settings/device_settings_provider.cc

Index: chrome/browser/chromeos/settings/device_settings_provider.cc
diff --git a/chrome/browser/chromeos/settings/device_settings_provider.cc b/chrome/browser/chromeos/settings/device_settings_provider.cc
index de64b1aec1bc0c6229d10eaa525cd7fbc3351dda..e2d8d8b7d580451d47d0a66991801092c9252adc 100644
--- a/chrome/browser/chromeos/settings/device_settings_provider.cc
+++ b/chrome/browser/chromeos/settings/device_settings_provider.cc
@@ -87,6 +87,7 @@ const char* const kKnownSettings[] = {
     kReportDeviceVersionInfo,
     kReportOsUpdateStatus,
     kReportRunningKioskApp,
+    kReportSoundVolume,
     kReportUploadFrequency,
     kServiceAccountIdentity,
     kSignedDataRoamingEnabled,
@@ -434,6 +435,10 @@ void DecodeReportingPolicies(
           kReportUploadFrequency,
           reporting_policy.device_status_frequency());
     }
+    if (reporting_policy.has_report_sound_volume()) {
+      new_values_cache->SetBoolean(kReportSoundVolume,
+                                   reporting_policy.report_sound_volume());
+    }
   }
 }