Notify the BluetoothAdapter::Observer when a bluetooth peripheral disconnects on Android and Mac.

device/bluetooth/bluez/bluetooth_adapter_bluez.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_BLUEZ_BLUETOOTH_ADAPTER_BLUEZ_H_
 #define DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_ADAPTER_BLUEZ_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 109 matching lines @@
       const CreateAdvertisementCallback& callback,
       const CreateAdvertisementErrorCallback& error_callback) override;
 
   device::BluetoothLocalGattService* GetGattService(
       const std::string& identifier) const override;
 
   // Locates the device object by object path (the devices map and
   // BluetoothDevice methods are by address).
   BluetoothDeviceBlueZ* GetDeviceWithPath(const dbus::ObjectPath& object_path);
 
-  // Announces to observers a change in device state that is not reflected by
-  // its D-Bus properties. |device| is owned by the caller and cannot be NULL.
-  void NotifyDeviceChanged(BluetoothDeviceBlueZ* device);
-
   // Announce to observers a device address change.
   void NotifyDeviceAddressChanged(BluetoothDeviceBlueZ* device,
                                   const std::string& old_address);
 
   // Returns the object path of the adapter.
   const dbus::ObjectPath& object_path() const { return object_path_; }
 
   // Request a profile on the adapter for a custom service with a
   // specific UUID for the device at |device_path| to be sent to |delegate|.
   // If |device_path| is the empty string, incoming connections will be
@@ skipping 325 matching lines @@
   // 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<BluetoothAdapterBlueZ> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothAdapterBlueZ);
 };
 
 }  // namespace bluez
 
 #endif  // DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_ADAPTER_BLUEZ_H_