Construct USB descriptors over explicit values.

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>
@@ skipping 31 matching lines @@
   USB_SYNCHRONIZATION_SYNCHRONOUS,
 };
 
 enum UsbUsageType {
   USB_USAGE_DATA = 0,
   USB_USAGE_FEEDBACK,
   USB_USAGE_EXPLICIT_FEEDBACK
 };
 
 struct UsbEndpointDescriptor {
-  UsbEndpointDescriptor();
+  UsbEndpointDescriptor(uint8_t address,
+                        UsbEndpointDirection direction,
+                        uint16_t maximum_packet_size,
+                        UsbSynchronizationType synchronization_type,
+                        UsbTransferType transfer_type,
+                        UsbUsageType usage_type,
+                        uint16_t polling_interval);
+  UsbEndpointDescriptor() = delete;
   ~UsbEndpointDescriptor();
 
   uint8_t address;
   UsbEndpointDirection direction;
   uint16_t maximum_packet_size;
   UsbSynchronizationType synchronization_type;
   UsbTransferType transfer_type;
   UsbUsageType usage_type;
   uint16_t polling_interval;
   std::vector<uint8_t> extra_data;
 };
 
 struct UsbInterfaceDescriptor {
-  UsbInterfaceDescriptor();
+  UsbInterfaceDescriptor(uint8_t interface_number,
+                         uint8_t alternate_setting,
+                         uint8_t interface_class,
+                         uint8_t interface_subclass,
+                         uint8_t interface_protocol);
+  UsbInterfaceDescriptor() = delete;
   ~UsbInterfaceDescriptor();
 
   uint8_t interface_number;
   uint8_t alternate_setting;
   uint8_t interface_class;
   uint8_t interface_subclass;
   uint8_t interface_protocol;
   std::vector<UsbEndpointDescriptor> endpoints;
   std::vector<uint8_t> extra_data;
 };
 
 struct UsbConfigDescriptor {
-  UsbConfigDescriptor();
+  UsbConfigDescriptor(uint8_t configuration_value,
+                      bool self_powered,
+                      bool remote_wakeup,
+                      uint16_t maximum_power);
+  UsbConfigDescriptor() = delete;
   ~UsbConfigDescriptor();
 
   uint8_t configuration_value;
   bool self_powered;
   bool remote_wakeup;
   uint16_t maximum_power;
   std::vector<UsbInterfaceDescriptor> interfaces;
   std::vector<uint8_t> extra_data;
 };
 
 bool ParseUsbStringDescriptor(const std::vector<uint8_t>& descriptor,
                               base::string16* output);
 
 void ReadUsbStringDescriptors(
     scoped_refptr<UsbDeviceHandle> device_handle,
     scoped_ptr<std::map<uint8_t, base::string16>> index_map,
     const base::Callback<void(scoped_ptr<std::map<uint8_t, base::string16>>)>&
         callback);
 
 }  // namespace device
 
 #endif  // DEVICE_USB_USB_DESCRIPTORS_H_