Add Bluetooth device type icons on the device list in system tray.

ash/system/tray/system_tray_delegate.h

Index: ash/system/tray/system_tray_delegate.h
diff --git a/ash/system/tray/system_tray_delegate.h b/ash/system/tray/system_tray_delegate.h
index 285dafb8c7e4787d58d1b7e72af8a2f3339b65a2..632550d76a8aeb954355a54f5a505dcd24f4dc2e 100644
--- a/ash/system/tray/system_tray_delegate.h
+++ b/ash/system/tray/system_tray_delegate.h
@@ -18,6 +18,10 @@
 #include "base/strings/string16.h"
 #include "ui/gfx/image/image_skia.h"
 
+#if defined(OS_CHROMEOS)
+#include "device/bluetooth/bluetooth_device.h"
+#endif
+
 class AccountId;
 
 namespace base {
@@ -46,18 +50,22 @@ struct ASH_EXPORT NetworkIconInfo {
   bool is_cellular;
 };
 
+#if defined(OS_CHROMEOS)
 struct ASH_EXPORT BluetoothDeviceInfo {
   BluetoothDeviceInfo();
+  BluetoothDeviceInfo(const BluetoothDeviceInfo& other);
   ~BluetoothDeviceInfo();
 
   std::string address;
   base::string16 display_name;
+  device::BluetoothDevice::DeviceType device_type;
   bool connected;
   bool connecting;
   bool paired;
 };
 
 using BluetoothDeviceList = std::vector<BluetoothDeviceInfo>;
+#endif
 
 struct ASH_EXPORT IMEPropertyInfo {
   IMEPropertyInfo();