Implemented BluetoothAdapterMac::AddDevices().

device/bluetooth/bluetooth_adapter_mac.h

 // Copyright 2013 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_MAC_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_MAC_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 
+#ifdef __OBJC__
+@class NSArray;
+#else
+class NSArray;
+#endif
+
 namespace base {
 
 class SequencedTaskRunner;
 
 }  // namespace base
 
 namespace device {
 
 class BluetoothAdapterMacTest;
 
@@ skipping 27 matching lines @@
   friend class BluetoothAdapterMacTest;
 
   BluetoothAdapterMac();
   virtual ~BluetoothAdapterMac();
 
   void TrackDefaultAdapter();
   void TrackTestAdapter(
       scoped_refptr<base::SequencedTaskRunner> ui_task_runner);
   void PollAdapter();
 
+  // Updates |devices_| to be consistent with |devices| and notifies observers
+  // of the changes.
+  // |devices| is an array of pointers to |IOBluetoothDevice| objects.
+  void UpdateDevices(NSArray* devices);

[Mark Mentovai, 2013/03/20 19:01:16]

I like keeping the naming consistent. The new method uses the name
paired_devices. Can you use the same name for this method too, here and in the
implementation?

[youngki, 2013/03/20 20:30:50]

Actually I am going to use this method to add discovered devices into |devices|
in the later CLs, so I think I should keep the name as devices.

Speaking of that, I think AddDevices is probably a better name than
UpdateDevices, so I just changed the method name; also I revised its comments to
say that devices could be either discovered or paired devices.

+
+  // Remove any unpaired devices (i.e. devices that are not in |paired_devices|)
+  // from |devices_|.
+  // |devices| is an array of pointers to paired |IOBluetoothDevice| objects.
+  void RemoveUnpairedDevices(NSArray* paired_devices);
+
   bool powered_;
 
   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
 
   // List of observers interested in event notifications from us.
   ObserverList<BluetoothAdapter::Observer> observers_;
 
   base::WeakPtrFactory<BluetoothAdapterMac> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothAdapterMac);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_ADAPTER_MAC_H_