Replace more ObserverList with base::ObserverList.

device/bluetooth/bluetooth_adapter.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_ADAPTER_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 443 matching lines @@
   // discovering. This should be called by all platform implementations.
   void MarkDiscoverySessionsAsInactive();
 
   // Removes |discovery_session| from |discovery_sessions_|, if its in there.
   // Called by DiscoverySession when an instance is destroyed or becomes
   // inactive.
   void DiscoverySessionBecameInactive(
       BluetoothDiscoverySession* discovery_session);
 
   // Observers of BluetoothAdapter, notified from implementation subclasses.
-  ObserverList<device::BluetoothAdapter::Observer> observers_;
+  base::ObserverList<device::BluetoothAdapter::Observer> observers_;
 
   // Devices paired with, connected to, discovered by, or visible to the
   // adapter. The key is the Bluetooth address of the device and the value is
   // the BluetoothDevice object whose lifetime is managed by the adapter
   // instance.
   DevicesMap devices_;
 
   // Default pairing delegates registered with the adapter.
   std::list<PairingDelegatePair> pairing_delegates_;
 
@@ skipping 13 matching lines @@
   std::set<BluetoothDiscoverySession*> discovery_sessions_;
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<BluetoothAdapter> weak_ptr_factory_;
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_H_