DBus changes for implementing local GATT attributes.

device/bluetooth/dbus/bluetooth_gatt_service_service_provider.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_DBUS_BLUETOOTH_GATT_SERVICE_SERVICE_PROVIDER_H_
 #define DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_SERVICE_SERVICE_PROVIDER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "dbus/bus.h"
+#include "dbus/message.h"
 #include "dbus/object_path.h"
 #include "device/bluetooth/bluetooth_export.h"
 
 namespace bluez {
 
 // BluetoothGattServiceServiceProvider is used to provide a D-Bus object that
 // the Bluetooth daemon can communicate with to register GATT service
 // hierarchies.
 //
 // Instantiate with a chosen D-Bus object path (that conforms to the BlueZ GATT
 // service specification), service UUID, and the list of included services, and
 // pass the D-Bus object path as the |service_path| argument to the
 // bluez::BluetoothGattManagerClient::RegisterService method. Make sure to
 // create characteristic and descriptor objects using the appropriate service
 // providers before registering a GATT service with the Bluetooth daemon.
 class DEVICE_BLUETOOTH_EXPORT BluetoothGattServiceServiceProvider {
  public:
   virtual ~BluetoothGattServiceServiceProvider();
 
+  // Writes an array of the service's properties into the provided writer.
+  virtual void WriteProperties(dbus::MessageWriter* writer) {}
+
+  virtual const dbus::ObjectPath& object_path() const = 0;
+
   // Creates the instance where |bus| is the D-Bus bus connection to export the
   // object onto, |object_path| is the object path that it should have, |uuid|
   // is the 128-bit GATT service UUID, and |includes| are a list of object paths
   // belonging to other exported GATT services that are included by the GATT
   // service being created. Make sure that all included services have been
   // exported before registering a GATT services with the GATT manager.
   static BluetoothGattServiceServiceProvider* Create(
       dbus::Bus* bus,
       const dbus::ObjectPath& object_path,
       const std::string& uuid,
       const std::vector<dbus::ObjectPath>& includes);
 
  protected:
   BluetoothGattServiceServiceProvider();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BluetoothGattServiceServiceProvider);
 };
 
 }  // namespace bluez
 
 #endif  // DEVICE_BLUETOOTH_DBUS_BLUETOOTH_GATT_SERVICE_SERVICE_PROVIDER_H_