Build a basic Mojo service framework for device/usb

device/usb/device_impl.cc

+// Copyright 2015 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/device_impl.h"
+#include "device/usb/type_converters.h"
+#include "device/usb/usb_device.h"
+
+namespace device {
+namespace usb {
+
+DeviceImpl::DeviceImpl(scoped_refptr<UsbDevice> device,
+                       mojo::InterfaceRequest<Device> request)
+    : binding_(this, request.Pass()),
+      device_(device),
+      info_(DeviceInfo::From(*device)) {
+  // TODO(rockot/reillyg): Support more than just the current configuration.
+  // Also, converting configuration info should be done in the TypeConverter,
+  // but GetConfiguration() is non-const so we do it here for now.
+  const UsbConfigDescriptor* config = device->GetConfiguration();
+  info_->configurations = mojo::Array<ConfigurationInfoPtr>::New(0);
+  if (config)
+    info_->configurations.push_back(ConfigurationInfo::From(*config));
+}
+
+DeviceImpl::~DeviceImpl() {
+}
+
+void DeviceImpl::GetDeviceInfo(const GetDeviceInfoCallback& callback) {
+  callback.Run(info_.Clone());
+}
+
+}  // namespace usb
+}  // namespace device