Add UMA for WebBluetooth RSSI signal strength level

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 21fb8dd04e56bd42cfb0018e8035f0067e2c1174..86586fd28587c75b07b47d3f1edca66ad6ef0300 100644
--- a/content/browser/bluetooth/bluetooth_metrics.cc
+++ b/content/browser/bluetooth/bluetooth_metrics.cc
@@ -328,4 +328,11 @@ void RecordStartNotificationsOutcome(CacheQueryOutcome outcome) {
       TranslateCacheQueryOutcomeToGATTOperationOutcome(outcome));
 }
 
+void RecordRSSISignalStrengthLevel(UMARSSISignalStrengthLevel level) {
+  UMA_HISTOGRAM_ENUMERATION(
+      "Bluetooth.Web.RequestDevice.RSSISignalStrengthLevel",
+      static_cast<int>(level),
+      static_cast<int>(UMARSSISignalStrengthLevel::COUNT));
+}
+
 }  // namespace content