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

device/bluetooth/bluez/bluetooth_adapter_bluez.cc

 // 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.
 
 #include "device/bluetooth/bluez/bluetooth_adapter_bluez.h"
 
 #include <memory>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 971 matching lines @@
   }
   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
                     AdapterDiscoveringChanged(this, discovering));
 }
 
 void BluetoothAdapterBlueZ::PresentChanged(bool present) {
   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
                     AdapterPresentChanged(this, present));
 }
 
-void BluetoothAdapterBlueZ::NotifyDeviceChanged(BluetoothDeviceBlueZ* device) {
-  DCHECK(device);
-  DCHECK(device->adapter_ == this);
-
-  FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
-                    DeviceChanged(this, device));
-}
-
 void BluetoothAdapterBlueZ::NotifyDeviceAddressChanged(
     BluetoothDeviceBlueZ* device,
     const std::string& old_address) {
   DCHECK(device->adapter_ == this);
 
   FOR_EACH_OBSERVER(BluetoothAdapter::Observer, observers_,
                     DeviceAddressChanged(this, device, old_address));
 }
 
 void BluetoothAdapterBlueZ::UseProfile(
@@ skipping 630 matching lines @@
 
 void BluetoothAdapterBlueZ::RegisterApplicationOnError(
     const base::Closure& callback,
     const device::BluetoothGattService::ErrorCallback& error_callback,
     const std::string& /* error_name */,
     const std::string& /* error_message */) {
   RegisterApplication(callback, error_callback);
 }
 
 }  // namespace bluez