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..8d646a3a9f3a3fff233fbe176e3d227791b26ed8 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 +65,16 @@ class BluetoothAdapterMac : public BluetoothAdapter {
       scoped_refptr<base::SequencedTaskRunner> ui_task_runner);
   void PollAdapter();
 
+  // Adds |devices| into |devices_| and notifies observers of the changes.
+  // |devices| is an array of pointers to discovered or paired
+  // |IOBluetoothDevice| objects.
+  void AddDevices(NSArray* devices);
+
+  // Removes devices that used to be paired but are unpaired by the system 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_;