Convert device::UsbConfigDescriptor and friends to structs.

device/usb/usb_descriptors.cc

+// 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.
+
+#include "device/usb/usb_descriptors.h"
+
+namespace device {
+
+UsbEndpointDescriptor::UsbEndpointDescriptor()
+    : address(0),
+      direction(USB_DIRECTION_INBOUND),
+      maximum_packet_size(0),
+      synchronization_type(USB_SYNCHRONIZATION_NONE),
+      transfer_type(USB_TRANSFER_CONTROL),
+      usage_type(USB_USAGE_DATA),
+      polling_interval(0) {
+}
+
+UsbEndpointDescriptor::~UsbEndpointDescriptor() {
+}
+
+UsbInterfaceDescriptor::UsbInterfaceDescriptor()
+    : interface_number(0),
+      alternate_setting(0),
+      interface_class(0),
+      interface_subclass(0),
+      interface_protocol(0) {
+}
+
+UsbInterfaceDescriptor::~UsbInterfaceDescriptor() {
+}
+
+UsbConfigDescriptor::UsbConfigDescriptor()
+    : configuration_value(0),
+      self_powered(false),
+      remote_wakeup(false),
+      maximum_power(0) {
+}
+
+UsbConfigDescriptor::~UsbConfigDescriptor() {
+}
+
+}  // namespace device