Index: device/usb/usb_service_impl.h |
diff --git a/device/usb/usb_service_impl.h b/device/usb/usb_service_impl.h |
index e5467fb0b0c4ea99fcc2fd7b575484dba08da4fa..c644842aeba6f7a9dafa2e53da76a04fd38139ba 100644 |
--- a/device/usb/usb_service_impl.h |
+++ b/device/usb/usb_service_impl.h |
@@ -34,6 +34,8 @@ namespace device { |
typedef struct libusb_device* PlatformUsbDevice; |
typedef struct libusb_context* PlatformUsbContext; |
+class UsbDeviceImpl; |
+ |
class UsbServiceImpl : |
#if defined(OS_WIN) |
public DeviceMonitorWin::Observer, |