bluetooth: Blink-side implementation of getCharacteristic.

public/platform/modules/bluetooth/WebBluetoothGATTCharacteristic.h

 // 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.
 
 #ifndef WebBluetoothGATTCharacteristic_h
 #define WebBluetoothGATTCharacteristic_h
 
 #include "public/platform/WebString.h"
 #include "public/web/WebArrayBuffer.h"
 
 namespace blink {
 
 struct WebBluetoothGATTCharacteristic {
     WebBluetoothGATTCharacteristic(const WebString& characteristicInstanceID,
         const WebString& serviceInstanceID,
         const WebString& uuid)
         : characteristicInstanceID(characteristicInstanceID)
         , serviceInstanceID(serviceInstanceID)
         , uuid(uuid)
     {
     }
 
     // Members corresponding to BluetoothGATTCharacteristic attributes as
     // specified in the IDL.
     const WebString characteristicInstanceID;
     const WebString serviceInstanceID;
     const WebString uuid;
     // TODO(ortuno): Add 'properties' once CharacteristicProperties is implemented.
+    // https://crbug.com/483345
     // const WebCharacteristicProperties properties;
     const WebArrayBuffer value;
 };
 
 } // namespace blink
 
 #endif // WebBluetoothGATTCharacteristic_h