Implemented Asynchronous Initialization of BluetoothAdapter.

chrome/common/extensions/permissions/bluetooth_device_permission.cc

 // Copyright (c) 2012 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 "chrome/common/extensions/permissions/bluetooth_device_permission.h"
 
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 21 matching lines @@
 
 bool BluetoothDevicePermission::ManifestEntryForbidden() const {
   return true;
 }
 
 PermissionMessages BluetoothDevicePermission::GetMessages() const {
   DCHECK(HasMessages());
   PermissionMessages result;
 
   scoped_refptr<device::BluetoothAdapter> bluetooth_adapter =
-      device::BluetoothAdapterFactory::GetAdapter();
+      device::BluetoothAdapterFactory::MaybeGetAdapter();
 
   for (std::set<BluetoothDevicePermissionData>::const_iterator i =
       data_set_.begin(); i != data_set_.end(); ++i) {
 
     const std::string& device_address = i->device_address();
     string16 device_identifier;
     if (bluetooth_adapter) {
       device::BluetoothDevice* device =
           bluetooth_adapter->GetDevice(device_address);
       if (device)
         device_identifier = device->GetName();
     }
 
     if (device_identifier.length() == 0) {
       UTF8ToUTF16(device_address.c_str(), device_address.length(),
           &device_identifier);
     }
 
     result.push_back(PermissionMessage(
           PermissionMessage::kBluetoothDevice,
           l10n_util::GetStringFUTF16(
               IDS_EXTENSION_PROMPT_WARNING_BLUETOOTH_DEVICE,
               device_identifier)));
   }
 
   return result;
 }
 
 }  // namespace extensions