bluetooth: Refactor repeated code used to find a Bluetooth object from its ID.

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 22 matching lines @@
   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);
 
+// Enumation for outcomes of querying the bluetooth cache.
+enum class CacheQueryOutcome {
+  SUCCESS = 0,
+  NO_DEVICE = 1,
+  NO_SERVICE = 2,
+  NO_CHARACTERISTIC = 3,
+};
+
+// Record outcome for the function based on the cache query error.
+void RecordOutcomeWithCacheQueryResult(UMAWebBluetoothFunction function,
+                                       CacheQueryOutcome outcome);
+
 // requestDevice() Metrics
 enum class UMARequestDeviceOutcome {
   SUCCESS = 0,
   NO_BLUETOOTH_ADAPTER = 1,
   NO_RENDER_FRAME = 2,
   OBSOLETE_DISCOVERY_START_FAILED = 3,
   OBSOLETE_DISCOVERY_STOP_FAILED = 4,
   OBSOLETE_NO_MATCHING_DEVICES_FOUND = 5,
   BLUETOOTH_ADAPTER_NOT_PRESENT = 6,
   OBSOLETE_BLUETOOTH_ADAPTER_OFF = 7,
@@ skipping 133 matching lines @@
 
 // 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_