Allow changing metrics reporting state without callback.

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 247 matching lines @@
   base::DictionaryValue response;
   response.SetString(kAction, kActionShowPage);
   response.SetInteger(kPage, static_cast<int>(page));
   response.SetString(kStatus, status);
   std::string response_string;
   base::JSONWriter::Write(response, &response_string);
   client_->PostMessageFromNativeHost(response_string);
 }
 
 void ArcSupportHost::EnableMetrics(bool is_enabled) {
-  InitiateMetricsReportingChange(is_enabled, OnMetricsReportingCallbackType());
+  ChangeMetricsReportingState(is_enabled);
 }
 
 void ArcSupportHost::EnableBackupRestore(bool is_enabled) {
   arc::ArcAuthService* arc_auth_service = arc::ArcAuthService::Get();
   DCHECK(arc_auth_service && arc_auth_service->IsAllowed());
   PrefService* pref_service = arc_auth_service->profile()->GetPrefs();
   pref_service->SetBoolean(prefs::kArcBackupRestoreEnabled, is_enabled);
 }
 
 void ArcSupportHost::EnableLocationService(bool is_enabled) {
@@ skipping 57 matching lines @@
     EnableLocationService(is_enabled);
   } else {
     NOTREACHED();
   }
 }
 
 scoped_refptr<base::SingleThreadTaskRunner> ArcSupportHost::task_runner()
     const {
   return base::ThreadTaskRunnerHandle::Get();
 }