bluetooth: BluetoothAdapterDeleter used to control BluetoothAdapter destruction.

device/bluetooth/bluetooth_adapter_mac.mm

 // 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/bluetooth_adapter_mac.h"
 
 #import <IOBluetooth/objc/IOBluetoothDevice.h>
 #import <IOBluetooth/objc/IOBluetoothHostController.h>
 
 #include <string>
@@ skipping 146 matching lines @@
 }
 
 void BluetoothAdapterMac::DeviceConnected(IOBluetoothDevice* device) {
   // TODO(isherman): Investigate whether this method can be replaced with a call
   // to +registerForConnectNotifications:selector:.
   DVLOG(1) << "Adapter registered a new connection from device with address: "
            << BluetoothDeviceMac::GetDeviceAddress(device);
   DeviceAdded(device);
 }
 
+void BluetoothAdapterMac::DeleteOnCorrectThread() const {
+  if (!ui_task_runner_->DeleteSoon(FROM_HERE, this))
+    delete this;
+}
+
 void BluetoothAdapterMac::AddDiscoverySession(
     const base::Closure& callback,
     const ErrorCallback& error_callback) {
   DVLOG(1) << __func__;
   if (num_discovery_sessions_ > 0) {
     DCHECK(IsDiscovering());
     num_discovery_sessions_++;
     callback.Run();
     return;
   }
@@ skipping 137 matching lines @@
     DCHECK_EQ(num_removed, 1U);
   }
 
   // Add any new paired devices.
   for (IOBluetoothDevice* device in [IOBluetoothDevice pairedDevices]) {
     DeviceAdded(device);
   }
 }
 
 }  // namespace device