bluetooth: readValue Blink implementation

Source/modules/bluetooth/BluetoothGATTCharacteristic.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 "config.h"
 #include "modules/bluetooth/BluetoothGATTCharacteristic.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "modules/bluetooth/BluetoothError.h"
+#include "modules/bluetooth/ConvertWebVectorToArrayBuffer.h"
 #include "public/platform/Platform.h"
 #include "public/platform/modules/bluetooth/WebBluetooth.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
 BluetoothGATTCharacteristic::BluetoothGATTCharacteristic(PassOwnPtr<WebBluetoothGATTCharacteristic> webCharacteristic)
     : m_webCharacteristic(webCharacteristic)
 {
 }
 
 BluetoothGATTCharacteristic* BluetoothGATTCharacteristic::take(ScriptPromiseResolver*, WebBluetoothGATTCharacteristic* webCharacteristicRawPointer)
 {
     if (!webCharacteristicRawPointer) {
         return nullptr;
     }
     return new BluetoothGATTCharacteristic(adoptPtr(webCharacteristicRawPointer));
 }
 
 void BluetoothGATTCharacteristic::dispose(WebBluetoothGATTCharacteristic* webCharacteristic)
 {
     delete webCharacteristic;
 }
 
+ScriptPromise BluetoothGATTCharacteristic::readValue(ScriptState* scriptState)
+{
+    WebBluetooth* webbluetooth = Platform::current()->bluetooth();
+
+    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+    webbluetooth->readValue(m_webCharacteristic->characteristicInstanceID, new CallbackPromiseAdapter<ConvertWebVectorToArrayBuffer, BluetoothError>(resolver));
+
+    return promise;
+}
+
 } // namespace blink