[Merge to M50] [Chrome OS Bootstrapping]: Do not always power off the Bluetooth adapter.

components/pairing/shark_connection_listener.cc

 // Copyright 2014 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 "components/pairing/shark_connection_listener.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
 #include "components/pairing/bluetooth_host_pairing_controller.h"
 
 namespace pairing_chromeos {
 
-SharkConnectionListener::SharkConnectionListener(OnConnectedCallback callback)
+SharkConnectionListener::SharkConnectionListener(
+    const scoped_refptr<base::SingleThreadTaskRunner>& file_task_runner,
+    OnConnectedCallback callback)
     : callback_(callback) {
-  controller_.reset(new BluetoothHostPairingController());
+  controller_.reset(new BluetoothHostPairingController(file_task_runner));
   controller_->AddObserver(this);
   controller_->StartPairing();
 }
 
 SharkConnectionListener::~SharkConnectionListener() {
   if (controller_)
     controller_->RemoveObserver(this);
 }
 
 void SharkConnectionListener::PairingStageChanged(Stage new_stage) {
   if (new_stage == HostPairingController::STAGE_WAITING_FOR_CODE_CONFIRMATION
       // Code confirmation stage can be skipped if devices were paired before.
       || new_stage == HostPairingController::STAGE_SETUP_BASIC_CONFIGURATION) {
     controller_->RemoveObserver(this);
     callback_.Run(std::move(controller_));
     callback_.Reset();
   } else if (new_stage != HostPairingController::STAGE_WAITING_FOR_CONTROLLER) {
     LOG(ERROR) << "Unexpected stage " << new_stage;
   }
 }
 
 }  // namespace pairing_chromeos