bluetooth: Check if device name is null before trying to convert

device/bluetooth/test/bluetooth_test.h

 // Copyright 2015 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_TEST_BLUETOOTH_TEST_H_
 #define DEVICE_BLUETOOTH_TEST_BLUETOOTH_TEST_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 78 matching lines @@
   // Create a fake Low Energy device and discover it.
   // |device_ordinal| selects between multiple fake device data sets to produce:
   //   1: kTestDeviceName with advertised UUIDs kTestUUIDGenericAccess,
   //      kTestUUIDGenericAttribute and address kTestDeviceAddress1.
   //   2: kTestDeviceName with advertised UUIDs kTestUUIDImmediateAlert,
   //      kTestUUIDLinkLoss and address kTestDeviceAddress1.
   //   3: kTestDeviceNameEmpty with no advertised UUIDs and address
   //      kTestDeviceAddress1.
   //   4: kTestDeviceNameEmpty with no advertised UUIDs and address
   //      kTestDeviceAddress2.
+  //   5: Device with no name, with no advertised UUIDs and address
+  //      kTestDeviceAddress1.
   virtual BluetoothDevice* DiscoverLowEnergyDevice(int device_ordinal);
 
   // Simulates success of implementation details of CreateGattConnection.
   virtual void SimulateGattConnection(BluetoothDevice* device) {}
 
   // Simulates failure of CreateGattConnection with the given error code.
   virtual void SimulateGattConnectionError(BluetoothDevice* device,
                                            BluetoothDevice::ConnectErrorCode) {}
 
   // Simulates GattConnection disconnecting.
@@ skipping 209 matching lines @@
   int actual_error_callback_calls_ = 0;
   bool unexpected_success_callback_ = false;
   bool unexpected_error_callback_ = false;
 
   base::WeakPtrFactory<BluetoothTestBase> weak_factory_;
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_TEST_BLUETOOTH_TEST_H_