Add sound volume to device attribute reporting

chrome/browser/chromeos/policy/device_policy_decoder_chromeos.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/chromeos/policy/device_policy_decoder_chromeos.h"
 
 #include <limits>
 #include <string>
 
 #include "base/callback.h"
@@ skipping 473 matching lines @@
           POLICY_SCOPE_MACHINE, POLICY_SOURCE_CLOUD,
           base::MakeUnique<base::Value>(container.report_session_status()),
           nullptr);
     }
     if (container.has_device_status_frequency()) {
       policies->Set(key::kReportUploadFrequency, POLICY_LEVEL_MANDATORY,
                     POLICY_SCOPE_MACHINE, POLICY_SOURCE_CLOUD,
                     DecodeIntegerValue(container.device_status_frequency()),
                     nullptr);
     }
+    if (container.has_report_sound_volume()) {
+      policies->Set(
+          key::kReportSoundVolume, POLICY_LEVEL_MANDATORY,

[Andrew T Wilson (Slow), 2017/03/09 15:56:34]

I wouldn't build a separate control for this - just include this with
report_hardware_status()

+          POLICY_SCOPE_MACHINE, POLICY_SOURCE_CLOUD,
+          base::MakeUnique<base::Value>(container.report_sound_volume()),
+          nullptr);
+    }
   }
 
   if (policy.has_device_heartbeat_settings()) {
     const em::DeviceHeartbeatSettingsProto& container(
         policy.device_heartbeat_settings());
     if (container.has_heartbeat_enabled()) {
       policies->Set(
           key::kHeartbeatEnabled, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
           POLICY_SOURCE_CLOUD,
           base::MakeUnique<base::Value>(container.heartbeat_enabled()),
@@ skipping 372 matching lines @@
   // Decode the various groups of policies.
   DecodeLoginPolicies(policy, policies);
   DecodeNetworkPolicies(policy, policies);
   DecodeReportingPolicies(policy, policies);
   DecodeAutoUpdatePolicies(policy, policies);
   DecodeAccessibilityPolicies(policy, policies);
   DecodeGenericPolicies(policy, policies);
 }
 
 }  // namespace policy