chrome.bluetooth API improvements.

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/IOBluetoothDeviceInquiry.h>
 #import <IOBluetooth/objc/IOBluetoothHostController.h>
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/location.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/sequenced_task_runner.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "device/bluetooth/bluetooth_device_mac.h"
 
 // Replicate specific 10.7 SDK declarations for building with prior SDKs.
 #if !defined(MAC_OS_X_VERSION_10_7) || \
 MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
 
 @interface IOBluetoothHostController (LionSDKDeclarations)
@@ skipping 324 matching lines @@
        iter != callback_list.end();
        ++iter) {
     if (success)
       ui_task_runner_->PostTask(FROM_HERE, iter->first);
     else
       ui_task_runner_->PostTask(FROM_HERE, iter->second);
   }
 }
 
 }  // namespace device