bluetooth: Subscribe to notifications

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 e04a7cab0ea54ac3730cd60be9c1541c3e148412..e9a34c82ad9e2912e0e44609ed87a224e4116337 100644
--- a/content/browser/bluetooth/bluetooth_metrics.cc
+++ b/content/browser/bluetooth/bluetooth_metrics.cc
@@ -150,6 +150,9 @@ void RecordGATTOperationOutcome(UMAGATTOperation operation,
     case UMAGATTOperation::CHARACTERISTIC_WRITE:
       RecordCharacteristicWriteValueOutcome(outcome);
       return;
+    case UMAGATTOperation::START_NOTIFICATIONS:
+      RecordStartNotificationsOutcome(outcome);
+      return;
     case UMAGATTOperation::COUNT:
       NOTREACHED();
       return;
@@ -174,4 +177,12 @@ void RecordCharacteristicWriteValueOutcome(UMAGATTOperationOutcome outcome) {
                             static_cast<int>(UMAGATTOperationOutcome::COUNT));
 }
 
+// Characteristic.startNotifications
+void RecordStartNotificationsOutcome(UMAGATTOperationOutcome outcome) {
+  UMA_HISTOGRAM_ENUMERATION(
+      "Bluetooth.Web.Characteristic.StartNotifications.Outcome",
+      static_cast<int>(outcome),
+      static_cast<int>(UMAGATTOperationOutcome::COUNT));
+}
+
 }  // namespace content