bluetooth: Subscribe to notifications

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 11 matching lines @@
 // General Metrics
 
 // Enumaration of each Web Bluetooth API entry point.
 enum class UMAWebBluetoothFunction {
   REQUEST_DEVICE = 0,
   CONNECT_GATT = 1,
   GET_PRIMARY_SERVICE = 2,
   GET_CHARACTERISTIC = 3,
   CHARACTERISTIC_READ_VALUE = 4,
   CHARACTERISTIC_WRITE_VALUE = 5,
+  CHARACTERISTIC_START_NOTIFICATIONS = 6,
+  CHARACTERISTIC_STOP_NOTIFICATIONS = 7,
   // NOTE: Add new actions immediately above this line. Make sure to update
   // the enum list in tools/metrics/histograms/histograms.xml accordingly.
   COUNT
 };
 
 // There should be a call to this function for every call to the Web Bluetooth
 // API.
 void RecordWebBluetoothFunctionCall(UMAWebBluetoothFunction function);
 
 // requestDevice() Metrics
@@ skipping 110 matching lines @@
   NOT_SUPPORTED = 12,
   // Note: Add new GATT Outcomes immediately above this line.
   // Make sure to update the enum list in
   // tools/metrics/histograms/histograms.xml accordingly.
   COUNT
 };
 
 enum class UMAGATTOperation {
   CHARACTERISTIC_READ,
   CHARACTERISTIC_WRITE,
+  START_NOTIFICATIONS,
   // Note: Add new GATT Operations immediately above this line.
   COUNT
 };
 
 // Records the outcome of a GATT operation.
 // There should be a call to this function whenever the corresponding operation
 // doesn't have a call to Record[Operation]Outcome.
 void RecordGATTOperationOutcome(UMAGATTOperation operation,
                                 UMAGATTOperationOutcome outcome);
 
 // Characteristic.readValue() Metrics
 // There should be a call to this function for every call to
 // Send(BluetoothMsg_ReadCharacteristicValueSuccess) and
 // Send(BluetoothMsg_ReadCharacteristicValueError).
 void RecordCharacteristicReadValueOutcome(UMAGATTOperationOutcome error);
 
 // Characteristic.writeValue() Metrics
 // There should be a call to this function for every call to
 // Send(BluetoothMsg_WriteCharacteristicValueSuccess) and
 // Send(BluetoothMsg_WriteCharacteristicValueError).
 void RecordCharacteristicWriteValueOutcome(UMAGATTOperationOutcome error);
 
+// Characteristic.startNotifications() Metrics
+// There should be a call to this function for every call to
+// Send(BluetoothMsg_StartNotificationsSuccess) and
+// Send(BluetoothMsg_StopNotificationsError).
+void RecordStartNotificationsOutcome(UMAGATTOperationOutcome outcome);
+
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BLUETOOTH_BLUETOOTH_METRICS_H_