bluetooth: Add characteristics to the device's attribute instance map

third_party/WebKit/Source/modules/bluetooth/BluetoothRemoteGATTCharacteristic.cpp

 // 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.
 
 #include "modules/bluetooth/BluetoothRemoteGATTCharacteristic.h"
 
-#include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMDataView.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/events/Event.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "modules/bluetooth/BluetoothCharacteristicProperties.h"
 #include "modules/bluetooth/BluetoothError.h"
 #include "modules/bluetooth/BluetoothRemoteGATTService.h"
@@ skipping 27 matching lines @@
     : ActiveDOMObject(context),
       m_webCharacteristic(std::move(webCharacteristic)),
       m_service(service),
       m_stopped(false) {
   m_properties = BluetoothCharacteristicProperties::create(
       m_webCharacteristic->characteristicProperties);
   // See example in Source/platform/heap/ThreadState.h
   ThreadState::current()->registerPreFinalizer(this);
 }
 
-BluetoothRemoteGATTCharacteristic* BluetoothRemoteGATTCharacteristic::take(
-    ScriptPromiseResolver* resolver,
+BluetoothRemoteGATTCharacteristic* BluetoothRemoteGATTCharacteristic::create(
+    ExecutionContext* context,
     std::unique_ptr<WebBluetoothRemoteGATTCharacteristicInit> webCharacteristic,
     BluetoothRemoteGATTService* service) {
-  if (!webCharacteristic) {
-    return nullptr;
-  }
+  DCHECK(webCharacteristic);
+
   BluetoothRemoteGATTCharacteristic* characteristic =
-      new BluetoothRemoteGATTCharacteristic(resolver->getExecutionContext(),
-                                            std::move(webCharacteristic),
-                                            service);
+      new BluetoothRemoteGATTCharacteristic(
+          context, std::move(webCharacteristic), service);
   // See note in ActiveDOMObject about suspendIfNeeded.
   characteristic->suspendIfNeeded();
   return characteristic;
 }
 
 void BluetoothRemoteGATTCharacteristic::setValue(DOMDataView* domDataView) {
   m_value = domDataView;
 }
 
 void BluetoothRemoteGATTCharacteristic::dispatchCharacteristicValueChanged(
@@ skipping 296 matching lines @@
 
 DEFINE_TRACE(BluetoothRemoteGATTCharacteristic) {
   visitor->trace(m_service);
   visitor->trace(m_properties);
   visitor->trace(m_value);
   EventTargetWithInlineData::trace(visitor);
   ActiveDOMObject::trace(visitor);
 }
 
 }  // namespace blink