Implement WebBluetooth getDescriptor[s]

content/browser/bluetooth/cache_query_result.h

 // 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.
 
 #ifndef CONTENT_BROWSER_BLUETOOTH_CACHE_QUERY_RESULT_H_
 #define CONTENT_BROWSER_BLUETOOTH_CACHE_QUERY_RESULT_H_
 
 #include "content/browser/bluetooth/bluetooth_metrics.h"
 #include "third_party/WebKit/public/platform/modules/bluetooth/web_bluetooth.mojom.h"
 
 namespace device {
 class BluetoothDevice;
 class BluetoothRemoteGattService;
 class BluetoothRemoteGattCharacteristic;
+class BluetoothRemoteGattDescriptor;

[ortuno, 2016/12/02 06:14:50]

nit: Similarly here. I don't think we need these changes in this patch.

[dougt, 2016/12/02 18:31:27]

Done.

 }
 
 namespace content {
 
 // Struct that holds the result of a cache query.
 //
 // TODO(ortuno): Move into WebBluetoothServiceImpl.
 // https://crbug.com/508771
 struct CacheQueryResult {
   CacheQueryResult() : outcome(CacheQueryOutcome::SUCCESS) {}
 
   explicit CacheQueryResult(CacheQueryOutcome outcome) : outcome(outcome) {}
 
   ~CacheQueryResult() {}
 
   blink::mojom::WebBluetoothResult GetWebResult() const {
     switch (outcome) {
       case CacheQueryOutcome::SUCCESS:
       case CacheQueryOutcome::BAD_RENDERER:
         NOTREACHED();
         return blink::mojom::WebBluetoothResult::DEVICE_NO_LONGER_IN_RANGE;
       case CacheQueryOutcome::NO_DEVICE:
         return blink::mojom::WebBluetoothResult::DEVICE_NO_LONGER_IN_RANGE;
       case CacheQueryOutcome::NO_SERVICE:
         return blink::mojom::WebBluetoothResult::SERVICE_NO_LONGER_EXISTS;
       case CacheQueryOutcome::NO_CHARACTERISTIC:
         return blink::mojom::WebBluetoothResult::
             CHARACTERISTIC_NO_LONGER_EXISTS;
+      case CacheQueryOutcome::NO_DESCRIPTOR:
+        return blink::mojom::WebBluetoothResult::DESCRIPTOR_NO_LONGER_EXISTS;
     }
     NOTREACHED();
     return blink::mojom::WebBluetoothResult::DEVICE_NO_LONGER_IN_RANGE;
   }
 
   device::BluetoothDevice* device = nullptr;
   device::BluetoothRemoteGattService* service = nullptr;
   device::BluetoothRemoteGattCharacteristic* characteristic = nullptr;
+  device::BluetoothRemoteGattDescriptor* descriptor = nullptr;
   CacheQueryOutcome outcome;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BLUETOOTH_CACHE_QUERY_RESULT_H_