Use Mojo enum types in the C++ USB interface

device/usb/usb_descriptors.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 DEVICE_USB_USB_DESCRIPTORS_H_
 #define DEVICE_USB_USB_DESCRIPTORS_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/string16.h"
+#include "device/usb/public/interfaces/device.mojom.h"
 
 namespace device {
 
 class UsbDeviceHandle;
 
-enum UsbTransferType {
-  USB_TRANSFER_CONTROL = 0,
-  USB_TRANSFER_ISOCHRONOUS,
-  USB_TRANSFER_BULK,
-  USB_TRANSFER_INTERRUPT,
-};
-
-enum UsbEndpointDirection {
-  USB_DIRECTION_INBOUND = 0,
-  USB_DIRECTION_OUTBOUND,
-};
+using UsbTransferType = mojom::UsbTransferType;
+using UsbTransferDirection = mojom::UsbTransferDirection;
 
 enum UsbSynchronizationType {
   USB_SYNCHRONIZATION_NONE = 0,
   USB_SYNCHRONIZATION_ASYNCHRONOUS,
   USB_SYNCHRONIZATION_ADAPTIVE,
   USB_SYNCHRONIZATION_SYNCHRONOUS,
 };
 
 enum UsbUsageType {
   // Isochronous endpoint usages.
@@ skipping 11 matching lines @@
   UsbEndpointDescriptor(const uint8_t* data);
   UsbEndpointDescriptor(uint8_t address,
                         uint8_t attributes,
                         uint16_t maximum_packet_size,
                         uint8_t polling_interval);
   UsbEndpointDescriptor() = delete;
   UsbEndpointDescriptor(const UsbEndpointDescriptor& other);
   ~UsbEndpointDescriptor();
 
   uint8_t address;
-  UsbEndpointDirection direction;
+  UsbTransferDirection direction;
   uint16_t maximum_packet_size;
   UsbSynchronizationType synchronization_type;
   UsbTransferType transfer_type;
   UsbUsageType usage_type;
   uint8_t polling_interval;
   std::vector<uint8_t> extra_data;
 };
 
 struct UsbInterfaceDescriptor {
   UsbInterfaceDescriptor(const uint8_t* data);
@@ skipping 74 matching lines @@
 
 void ReadUsbStringDescriptors(
     scoped_refptr<UsbDeviceHandle> device_handle,
     std::unique_ptr<std::map<uint8_t, base::string16>> index_map,
     const base::Callback<
         void(std::unique_ptr<std::map<uint8_t, base::string16>>)>& callback);
 
 }  // namespace device
 
 #endif  // DEVICE_USB_USB_DESCRIPTORS_H_