Policy to control ARC Backup&Restore.

chrome/browser/chromeos/arc/arc_support_host.cc

 // Copyright 2016 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/arc/arc_support_host.h"
 
 #include <string>
 
 #include "ash/common/system/chromeos/devicetype_utils.h"
 #include "base/i18n/timezone.h"
@@ skipping 232 matching lines @@
   base::JSONWriter::Write(response, &response_string);
   client_->PostMessageFromNativeHost(response_string);
 }
 
 void ArcSupportHost::EnableMetrics(bool is_enabled) {
   InitiateMetricsReportingChange(is_enabled, OnMetricsReportingCallbackType());
 }
 
 void ArcSupportHost::EnableBackupRestore(bool is_enabled) {
   PrefService* pref_service = arc::ArcAuthService::Get()->profile()->GetPrefs();
+  if (pref_service->IsManagedPreference(prefs::kArcBackupRestoreEnabled))

[bartfab (slow), 2016/07/19 13:55:52]

It is safe to set the pref value even when it is managed. The policy value will
trump the user setting anyway.

[Sergey Poromov, 2016/07/19 14:34:28]

Done.

+    return;
   pref_service->SetBoolean(prefs::kArcBackupRestoreEnabled, is_enabled);
 }
 
 void ArcSupportHost::OnMessage(const std::string& request_string) {
   std::unique_ptr<base::Value> request_value =
       base::JSONReader::Read(request_string);
   base::DictionaryValue* request;
   if (!request_value || !request_value->GetAsDictionary(&request)) {
     NOTREACHED();
     return;
@@ skipping 37 matching lines @@
     EnableBackupRestore(is_enabled);
   } else {
     NOTREACHED();
   }
 }
 
 scoped_refptr<base::SingleThreadTaskRunner> ArcSupportHost::task_runner()
     const {
   return base::ThreadTaskRunnerHandle::Get();
 }