device/bluetooth: Implement BluetoothGattConnection on Chrome OS.

device/bluetooth/bluetooth_gatt_connection_chromeos.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_BLUETOOTH_BLUETOOTH_GATT_CONNECTION_CHROMEOS_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_GATT_CONNECTION_CHROMEOS_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/memory/weak_ptr.h"
+#include "chromeos/dbus/bluetooth_device_client.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluetooth_gatt_connection.h"
+
+namespace device {
+
+class BluetoothAdapter;
+
+}  // namespace device
+
+namespace chromeos {
+
+// BluetoothGattConnectionChromeOS implements BluetoothGattConnection for the
+// Chrome OS platform.
+class BluetoothGattConnectionChromeOS
+    : public device::BluetoothGattConnection,
+      public BluetoothDeviceClient::Observer {
+ public:
+  explicit BluetoothGattConnectionChromeOS(
+      scoped_refptr<device::BluetoothAdapter> adapter,
+      const std::string& device_address,
+      const dbus::ObjectPath& object_path);
+  virtual ~BluetoothGattConnectionChromeOS();
+
+  // BluetoothGattConnection overrides.
+  virtual std::string GetDeviceAddress() const OVERRIDE;
+  virtual bool IsConnected() OVERRIDE;
+  virtual void Disconnect(const base::Closure& callback) OVERRIDE;
+
+ private:
+
+  // chromeos::BluetoothDeviceClient::Observer overrides.
+  virtual void DeviceRemoved(const dbus::ObjectPath& object_path) OVERRIDE;
+  virtual void DevicePropertyChanged(const dbus::ObjectPath& object_path,
+                                     const std::string& property_name) OVERRIDE;
+
+  // True, if the connection is currently active.
+  bool connected_;
+
+  // The Bluetooth adapter that this connection is associated with.
+  scoped_refptr<device::BluetoothAdapter> adapter_;
+
+  // Bluetooth address of the underlying device.
+  std::string device_address_;
+
+  // D-Bus object path of the underlying device. This is used to filter observer
+  // events.
+  dbus::ObjectPath object_path_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothGattConnectionChromeOS);
+};
+
+}  // namespace chromeos
+
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_GATT_CONNECTION_CHROMEOS_H_