bluetooth: mac: add connected LE devices to chooser

device/bluetooth/bluetooth_adapter_unittest.cc

Index: device/bluetooth/bluetooth_adapter_unittest.cc
diff --git a/device/bluetooth/bluetooth_adapter_unittest.cc b/device/bluetooth/bluetooth_adapter_unittest.cc
index 06829a88dd6d1887fcf14d537b923cb42bd52a56..317f20d1318f4146fb46cf4da4aa94891aea2c72 100644
--- a/device/bluetooth/bluetooth_adapter_unittest.cc
+++ b/device/bluetooth/bluetooth_adapter_unittest.cc
@@ -865,4 +865,22 @@ TEST_F(BluetoothTest, RemoveOutdatedDeviceGattConnect) {
 }
 #endif  // defined(OS_ANDROID) || defined(OS_MACOSX)
 
+#if defined(OS_MACOSX)
+// Simulate a device being connected before starting discovery session.
+TEST_F(BluetoothTest, DiscoverConnectedLowEnergyDevice) {
+  if (!PlatformSupportsLowEnergy()) {
+    LOG(WARNING) << "Low Energy Bluetooth unavailable, skipping unit test.";
+    return;
+  }
+  InitWithFakeAdapter();
+  TestBluetoothAdapterObserver observer(adapter_);
+
+  SimulateConnectedLowEnergyDevice();
+  adapter_->RetrieveUnknownGattConnectedDevices();
+
+  EXPECT_EQ(1, observer.device_added_count());
+  EXPECT_EQ(1u, adapter_->GetDevices().size());
+}
+#endif  // defined(OS_MACOSX)
+
 }  // namespace device