bluetooth: Add Device service for chrome://bluetooth-internals.

device/bluetooth/device.cc

+// Copyright 2016 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 <utility>
+
+#include "base/strings/utf_string_conversions.h"
+#include "device/bluetooth/device.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace bluetooth {
+
+Device::Device(const std::string& address,
+               scoped_refptr<device::BluetoothAdapter> adapter)
+    : address_(address), adapter_(std::move(adapter)) {}
+
+Device::~Device() {}
+
+// static
+mojom::DeviceInfoPtr Device::ConstructDeviceInfoStruct(
+    const device::BluetoothDevice* device) {
+  mojom::DeviceInfoPtr device_info = mojom::DeviceInfo::New();
+
+  device_info->name = device->GetName();
+  device_info->name_for_display =
+      base::UTF16ToUTF8(device->GetNameForDisplay());
+  device_info->address = device->GetAddress();
+
+  return device_info;
+}
+
+void Device::GetInfo(const GetInfoCallback& callback) {
+  device::BluetoothDevice* device = adapter_->GetDevice(address_);
+  if (device) {
+    mojom::DeviceInfoPtr device_info = ConstructDeviceInfoStruct(device);
+    callback.Run(std::move(device_info));
+  } else {
+    callback.Run(nullptr);
+  }
+}
+
+}  // namespace bluetooth