Replace more ObserverList with base::ObserverList.

device/bluetooth/bluetooth_task_manager_win.h

 // 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.
 
 #ifndef DEVICE_BLUETOOTH_BLUETOOTH_TASK_MANAGER_WIN_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_TASK_MANAGER_WIN_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 182 matching lines @@
       const base::FilePath& device_path,
       ScopedVector<ServiceRecordState>* service_record_states);
 
   // UI task runner reference.
   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
 
   scoped_refptr<base::SequencedWorkerPool> worker_pool_;
   scoped_refptr<base::SequencedTaskRunner> bluetooth_task_runner_;
 
   // List of observers interested in event notifications.
-  ObserverList<Observer> observers_;
+  base::ObserverList<Observer> observers_;
 
   // Adapter handle owned by bluetooth task runner.
   base::win::ScopedHandle adapter_handle_;
 
   // indicates whether the adapter is in discovery mode or not.
   bool discovering_;
 
   // Use for discarding too many log messages.
   base::TimeTicks current_logging_batch_ticks_;
   int current_logging_batch_count_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothTaskManagerWin);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_TASK_MANAGER_WIN_H_