Add bluetooth device type icons on MD system tray.

chrome/browser/chromeos/login/screens/hid_detection_screen.h

 // Copyright 2014 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 CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 142 matching lines @@
   void TryPairingAsPointingDevice(device::BluetoothDevice* device);
 
   // Tries to connect given BT device as keyboard.
   void TryPairingAsKeyboardDevice(device::BluetoothDevice* device);
 
   // Tries to connect given BT device.
   void ConnectBTDevice(device::BluetoothDevice* device);
 
   // Called by device::BluetoothDevice on a successful pairing and connection
   // to a device.
-  void BTConnected(device::BluetoothDevice::DeviceType device_type);
+  void BTConnected(device::BluetoothDeviceType device_type);
 
   // Called by device::BluetoothDevice in response to a failure to
   // connect to the device with bluetooth address |address| due to an error
   // encoded in |error_code|.
   void BTConnectError(const std::string& address,
-                      device::BluetoothDevice::DeviceType device_type,
+                      device::BluetoothDeviceType device_type,
                       device::BluetoothDevice::ConnectErrorCode error_code);
 
   // Sends a notification to the Web UI of the status of available Bluetooth/USB
   // pointing device.
   void SendPointingDeviceNotification();
 
   // Sends a notification to the Web UI of the status of available Bluetooth/USB
   // keyboard device.
   void SendKeyboardDeviceNotification();
 
@@ skipping 31 matching lines @@
   bool showing_;
 
   base::WeakPtrFactory<HIDDetectionScreen> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HIDDetectionScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HID_DETECTION_SCREEN_H_