Attach a WebBluetooth to the LocalFrame and use it if it's available.

Source/modules/bluetooth/BluetoothError.cpp

 // Copyright 2014 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 "config.h"
 #include "modules/bluetooth/BluetoothError.h"
 
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 
@@ skipping 37 matching lines @@
 
         // NotSupportedErrors:
         MAP_ERROR(GATTUnknownError, NotSupportedError, "GATT Error Unknown.");
         MAP_ERROR(GATTUnknownFailure, NotSupportedError, "GATT operation failed for unknown reason.");
         MAP_ERROR(GATTNotPermitted, NotSupportedError, "GATT operation not permitted.");
         MAP_ERROR(GATTNotSupported, NotSupportedError, "GATT Error: Not supported.");
         MAP_ERROR(GATTUntranslatedErrorCode, NotSupportedError, "GATT Error: Unknown GattErrorCode.");
 
         // SecurityErrors:
         MAP_ERROR(GATTNotAuthorized, SecurityError, "GATT operation not authorized.");
+        MAP_ERROR(RequestDeviceWithoutFrame, SecurityError, "No window to show the requestDevice() dialog.");
 
 #undef MAP_ERROR
     }
 
     ASSERT_NOT_REACHED();
     return DOMException::create(UnknownError);
 }
 
 } // namespace blink