bluetooth: Fix logic mistake in DeviceChanged

device/bluetooth/bluez/bluetooth_device_bluez.cc

 // Copyright 2013 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.
 
 #include "device/bluetooth/bluez/bluetooth_device_bluez.h"
 
 #include <stdio.h>
 
 #include <memory>
 #include <utility>
@@ skipping 270 matching lines @@
 bool BluetoothDeviceBlueZ::IsConnected() const {
   bluez::BluetoothDeviceClient::Properties* properties =
       bluez::BluezDBusManager::Get()->GetBluetoothDeviceClient()->GetProperties(
           object_path_);
   DCHECK(properties);
 
   return properties->connected.value();
 }
 
 bool BluetoothDeviceBlueZ::IsGattConnected() const {
-  NOTIMPLEMENTED();
-  return false;
+  // Bluez uses the same attribute for GATT Connections and Classic BT
+  // Connections.
+  return IsConnected();
 }
 
 bool BluetoothDeviceBlueZ::IsConnectable() const {
   bluez::BluetoothInputClient::Properties* input_properties =
       bluez::BluezDBusManager::Get()->GetBluetoothInputClient()->GetProperties(
           object_path_);
   // GetProperties returns NULL when the device does not implement the given
   // interface. Non HID devices are normally connectable.
   if (!input_properties)
     return true;
@@ skipping 536 matching lines @@
 void BluetoothDeviceBlueZ::OnForgetError(const ErrorCallback& error_callback,
                                          const std::string& error_name,
                                          const std::string& error_message) {
   LOG(WARNING) << object_path_.value()
                << ": Failed to remove device: " << error_name << ": "
                << error_message;
   error_callback.Run();
 }
 
 }  // namespace bluez