Migrate Cryptauth*Managers RegisterPrefs to CryptAuthService::RegisterProfilePrefs.

chromeos/components/tether/initializer.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 "chromeos/components/tether/initializer.h"
 
+#include "chromeos/components/tether/active_host.h"
+#include "chromeos/components/tether/host_scan_device_prioritizer.h"
+
 namespace chromeos {
 
 namespace tether {
 
 // static
 Initializer* Initializer::instance_ = nullptr;
 
 void Initializer::Initialize(cryptauth::CryptAuthService* cryptauth_service) {
   if (instance_) {
     // TODO(khorimoto): Determine if a new instance should be created.
     instance_->cryptauth_service_ = cryptauth_service;
   } else {
     instance_ = new Initializer(cryptauth_service);
   }
 }
 
+// static
+void Initializer::RegisterProfilePrefs(PrefRegistrySimple* registry) {
+  ActiveHost::RegisterPrefs(registry);
+  HostScanDevicePrioritizer::RegisterPrefs(registry);
+}
+
 Initializer::Initializer(cryptauth::CryptAuthService* cryptauth_service)
     : cryptauth_service_(cryptauth_service) {}
 
 Initializer::~Initializer() {}
 
 }  // namespace tether
 
 }  // namespace chromeos