Add GetConnectionInfo function for BluetoothDevice, replacing the existing

device/bluetooth/bluetooth_adapter_chromeos.cc

Index: device/bluetooth/bluetooth_adapter_chromeos.cc
diff --git a/device/bluetooth/bluetooth_adapter_chromeos.cc b/device/bluetooth/bluetooth_adapter_chromeos.cc
index 847299431fd04fedb82d229fd54bcd849fe43bd7..68fb9ab36299ded74ac7988b78de7822034efefd 100644
--- a/device/bluetooth/bluetooth_adapter_chromeos.cc
+++ b/device/bluetooth/bluetooth_adapter_chromeos.cc
@@ -379,9 +379,7 @@ void BluetoothAdapterChromeOS::DevicePropertyChanged(
       property_name == properties->trusted.name() ||
       property_name == properties->connected.name() ||
       property_name == properties->uuids.name() ||
-      property_name == properties->rssi.name() ||
-      property_name == properties->connection_rssi.name() ||
-      property_name == properties->connection_tx_power.name())
+      property_name == properties->rssi.name())
     NotifyDeviceChanged(device_chromeos);
 
   // When a device becomes paired, mark it as trusted so that the user does