Implemented BluetoothAdapterMac::AddDevices().

device/bluetooth/bluetooth_adapter_mac.h

Index: device/bluetooth/bluetooth_adapter_mac.h
diff --git a/device/bluetooth/bluetooth_adapter_mac.h b/device/bluetooth/bluetooth_adapter_mac.h
index 30857c728bf26b5d1dd177faca79fc555d8c4aba..380c6abfb5f88746cf519f47fbc143eeaf6bcc16 100644
--- a/device/bluetooth/bluetooth_adapter_mac.h
+++ b/device/bluetooth/bluetooth_adapter_mac.h
@@ -12,6 +12,12 @@
 #include "base/observer_list.h"
 #include "device/bluetooth/bluetooth_adapter.h"
 
+#ifdef __OBJC__
+@class NSArray;
+#else
+class NSArray;
+#endif
+
 namespace base {
 
 class SequencedTaskRunner;
@@ -59,6 +65,10 @@ class BluetoothAdapterMac : public BluetoothAdapter {
       scoped_refptr<base::SequencedTaskRunner> ui_task_runner);
   void PollAdapter();
 
+  // Updates |devices_| to be consistent with |devices| and fires |DeviceAdded|,
+  // |DeviceChanged|, and |DeviceRemoved| observer calls.

[Mark Mentovai, 2013/03/19 16:04:35]

This comment should explain what |devices| is, because the declaration just says
“NSArray.” NSArray of what?

[youngki, 2013/03/19 19:04:55]

Done.

+  void UpdateDevices(NSArray* devices);
+
   bool powered_;
 
   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;