Implement WebBluetooth getDescriptor[s]

third_party/WebKit/Source/modules/bluetooth/BluetoothDevice.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 "modules/bluetooth/BluetoothDevice.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
@@ skipping 45 matching lines @@
   return m_attributeInstanceMap->getOrCreateBluetoothRemoteGATTCharacteristic(
       context, std::move(webCharacteristic), service);
 }
 
 bool BluetoothDevice::isValidCharacteristic(
     const String& characteristicInstanceId) {
   return m_attributeInstanceMap->containsCharacteristic(
       characteristicInstanceId);
 }
 
+BluetoothRemoteGATTDescriptor*
+BluetoothDevice::getOrCreateBluetoothRemoteGATTDescriptor(
+    std::unique_ptr<WebBluetoothRemoteGATTDescriptorInit> webDescriptor,
+    BluetoothRemoteGATTCharacteristic* characteristic) {
+  return m_attributeInstanceMap->getOrCreateBluetoothRemoteGATTDescriptor(
+      std::move(webDescriptor), characteristic);
+}
+
 void BluetoothDevice::dispose() {
   disconnectGATTIfConnected();
 }
 
 void BluetoothDevice::contextDestroyed() {
   disconnectGATTIfConnected();
 }
 
 void BluetoothDevice::disconnectGATTIfConnected() {
   if (m_gatt->connected()) {
@@ skipping 28 matching lines @@
 }
 
 DEFINE_TRACE(BluetoothDevice) {
   EventTargetWithInlineData::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
   visitor->trace(m_attributeInstanceMap);
   visitor->trace(m_gatt);
 }
 
 }  // namespace blink