Implement WebBluetooth getDescriptor[s]

content/browser/bluetooth/bluetooth_metrics.cc

Index: content/browser/bluetooth/bluetooth_metrics.cc
diff --git a/content/browser/bluetooth/bluetooth_metrics.cc b/content/browser/bluetooth/bluetooth_metrics.cc
index c9e540517d0e3603a7503fb9a15ddd536b554390..f9bbe6b49c3775dcd009dd34320277d9d5ad4d7a 100644
--- a/content/browser/bluetooth/bluetooth_metrics.cc
+++ b/content/browser/bluetooth/bluetooth_metrics.cc
@@ -226,6 +226,7 @@ void RecordGetCharacteristicsOutcome(
                                       UMAGetCharacteristicOutcome::NO_SERVICE);
       return;
     case CacheQueryOutcome::NO_CHARACTERISTIC:
+    case CacheQueryOutcome::NO_DESCRIPTOR:
       NOTREACHED();
       return;
   }
@@ -262,6 +263,10 @@ void RecordGATTOperationOutcome(UMAGATTOperation operation,
     case UMAGATTOperation::START_NOTIFICATIONS:
       RecordStartNotificationsOutcome(outcome);
       return;
+    case UMAGATTOperation::DESCRIPTOR_READ:
+    case UMAGATTOperation::DESCRIPTOR_WRITE:
+      // TODO(crbug.com/667319): Record descriptor interactions.
+      return;
     case UMAGATTOperation::COUNT:
       NOTREACHED();
       return;
@@ -283,6 +288,8 @@ static UMAGATTOperationOutcome TranslateCacheQueryOutcomeToGATTOperationOutcome(
       return UMAGATTOperationOutcome::NO_SERVICE;
     case CacheQueryOutcome::NO_CHARACTERISTIC:
       return UMAGATTOperationOutcome::NO_CHARACTERISTIC;
+    case CacheQueryOutcome::NO_DESCRIPTOR:
+      return UMAGATTOperationOutcome::NO_DESCRIPTOR;
   }
   NOTREACHED() << "No need to record success or renderer crash";
   return UMAGATTOperationOutcome::NOT_SUPPORTED;