Merge "Use the wrapped volume interface with the AVRCP conneciton handler" into pi-dev

  instance_->media_interface_ = new MediaInterfaceWrapper(media_interface);

  media_interface->RegisterUpdateCallback(instance_);

  VolumeInterfaceWrapper* wrapped_volume_interface = nullptr;

  if (volume_interface != nullptr) {

    instance_->volume_interface_ = new VolumeInterfaceWrapper(volume_interface);

    wrapped_volume_interface = new VolumeInterfaceWrapper(volume_interface);

  }

  instance_->volume_interface_ = wrapped_volume_interface;

  ConnectionHandler::Initialize(

      base::Bind(&AvrcpService::DeviceCallback, base::Unretained(instance_)),

      &avrcp_interface_, &sdp_interface_, volume_interface);

      &avrcp_interface_, &sdp_interface_, wrapped_volume_interface);

  instance_->connection_handler_ = ConnectionHandler::Get();

}