bluetooth: Use BluetoothUUID instead of string when sending uuids

content/browser/bluetooth/bluetooth_metrics.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 CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_METRICS_H_
 #define CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_METRICS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 121 matching lines @@
 enum class UMAGetPrimaryServiceOutcome {
   SUCCESS = 0,
   NO_DEVICE = 1,
   NOT_FOUND = 2,
   // Note: Add new GetPrimaryService outcomes immediately above this line.
   // Make sure to update the enum list in
   // tools/metrics/histograms/histograms.xml accordingly.
   COUNT
 };
 // Record the service uuid used when calling getPrimaryService.
-void RecordGetPrimaryServiceService(const device::BluetoothUUID& service);
+void RecordGetPrimaryServiceService(
+    const base::Optional<device::BluetoothUUID>& service);
 // There should be a call to this function for every call to
 // Send(BluetoothMsg_GetPrimaryServiceSuccess) and
 // Send(BluetoothMsg_GetPrimaryServiceError).
 void RecordGetPrimaryServiceOutcome(UMAGetPrimaryServiceOutcome outcome);
 // Records the outcome of the cache query for getPrimaryService. Should only be
 // called if QueryCacheForDevice fails.
 void RecordGetPrimaryServiceOutcome(CacheQueryOutcome outcome);
 
 // getCharacteristic() and getCharacteristics() Metrics
 enum class UMAGetCharacteristicOutcome {
@@ skipping 19 matching lines @@
     blink::mojom::WebBluetoothGATTQueryQuantity quantity,
     UMAGetCharacteristicOutcome outcome);
 // Records the outcome of the cache query for getCharacteristics. Should only be
 // called if QueryCacheForService fails.
 void RecordGetCharacteristicsOutcome(
     blink::mojom::WebBluetoothGATTQueryQuantity quantity,
     CacheQueryOutcome outcome);
 // Records the UUID of the characteristic used when calling getCharacteristic.
 void RecordGetCharacteristicsCharacteristic(
     blink::mojom::WebBluetoothGATTQueryQuantity quantity,
-    const std::string& characteristic);
+    const base::Optional<device::BluetoothUUID>& characteristic);
 
 // GATT Operations Metrics
 
 // These are the possible outcomes when performing GATT operations i.e.
 // characteristic.readValue/writeValue descriptor.readValue/writeValue.
 enum UMAGATTOperationOutcome {
   SUCCESS = 0,
   NO_DEVICE = 1,
   NO_SERVICE = 2,
   NO_CHARACTERISTIC = 3,
@@ skipping 50 matching lines @@
 // Send(BluetoothMsg_StartNotificationsSuccess) and
 // Send(BluetoothMsg_StopNotificationsError).
 void RecordStartNotificationsOutcome(UMAGATTOperationOutcome outcome);
 // Records the outcome of a cache query for startNotifications. Should only be
 // called if QueryCacheForCharacteristic fails.
 void RecordStartNotificationsOutcome(CacheQueryOutcome outcome);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_METRICS_H_