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

device/bluetooth/device.h

Index: device/bluetooth/device.h
diff --git a/device/bluetooth/device.h b/device/bluetooth/device.h
new file mode 100644
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+++ b/device/bluetooth/device.h
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+// 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.
+
+#ifndef DEVICE_BLUETOOTH_DEVICE_H_
+#define DEVICE_BLUETOOTH_DEVICE_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "device/bluetooth/bluetooth_adapter.h"
+#include "device/bluetooth/bluetooth_device.h"
+#include "device/bluetooth/public/interfaces/device.mojom.h"
+
+namespace bluetooth {
+
+// Implementation of Mojo Device located in
+// device/bluetooth/public/interfaces/device.mojom.
+// It handles requests to interact with Bluetooth Device.
+// Uses the platform abstraction of device/bluetooth.
+class Device : public mojom::Device {
+ public:
+  Device(const std::string& address,
+         scoped_refptr<device::BluetoothAdapter> adapter);
+  ~Device() override;
+
+  // Creates a mojom::DeviceInfo using info from the given |device|.
+  static mojom::DeviceInfoPtr ConstructDeviceInfoStruct(
+      const device::BluetoothDevice* device);
+
+  // mojom::Device overrides:
+  void GetInfo(const GetInfoCallback& callback) override;
+
+ private:
+  // The address of the Bluetooth device.
+  std::string address_;
+
+  // The current BluetoothAdapter.
+  scoped_refptr<device::BluetoothAdapter> adapter_;
+
+  DISALLOW_COPY_AND_ASSIGN(Device);
+};
+
+}  // namespace bluetooth
+
+#endif  // DEVICE_BLUETOOTH_DEVICE_H_