Implement WebBluetooth getDescriptor[s]

third_party/WebKit/Source/modules/modules_idl_files.gni

 # Copyright 2016 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.
 
 import("//third_party/WebKit/Source/bindings/bindings.gni")
 
 # The paths in this file are absolute since this file is imported and the
 # file lists must be valid from multple "current directories".
 
 bindings_modules_output_dir = "$bindings_output_dir/modules"
@@ skipping 30 matching lines @@
     get_path_info([
                     "app_banner/AppBannerPromptResult.idl",
                     "app_banner/BeforeInstallPromptEvent.idl",
                     "background_sync/SyncEvent.idl",
                     "background_sync/SyncManager.idl",
                     "battery/BatteryManager.idl",
                     "bluetooth/Bluetooth.idl",
                     "bluetooth/BluetoothDevice.idl",
                     "bluetooth/BluetoothCharacteristicProperties.idl",
                     "bluetooth/BluetoothRemoteGATTCharacteristic.idl",
+                    "bluetooth/BluetoothRemoteGATTDescriptor.idl",
                     "bluetooth/BluetoothRemoteGATTServer.idl",
                     "bluetooth/BluetoothRemoteGATTService.idl",
                     "bluetooth/BluetoothUUID.idl",
                     "broadcastchannel/BroadcastChannel.idl",
                     "budget/BudgetService.idl",
                     "budget/BudgetState.idl",
                     "cachestorage/Cache.idl",
                     "cachestorage/CacheStorage.idl",
                     "canvas2d/CanvasGradient.idl",
                     "canvas2d/CanvasPattern.idl",
@@ skipping 876 matching lines @@
   "$blink_modules_output_dir/websockets/CloseEventInit.h",
   "$blink_modules_output_dir/webusb/USBConnectionEventInit.cpp",
   "$blink_modules_output_dir/webusb/USBConnectionEventInit.h",
   "$blink_modules_output_dir/webusb/USBControlTransferParameters.cpp",
   "$blink_modules_output_dir/webusb/USBControlTransferParameters.h",
   "$blink_modules_output_dir/webusb/USBDeviceFilter.cpp",
   "$blink_modules_output_dir/webusb/USBDeviceFilter.h",
   "$blink_modules_output_dir/webusb/USBDeviceRequestOptions.cpp",
   "$blink_modules_output_dir/webusb/USBDeviceRequestOptions.h",
 ]