Merge "AVRCP: Verify SetBrowsedPlayer player ID" into pi-dev

  DEVICE_VLOG(2) << __func__ << ": success=" << success << " root_id=\""

                 << root_id << "\" num_items=" << num_items;

  // TODO (apanicke): Check success. Right now this is ok since it will

  // always succeed since we only have one player in the media layer.

  if (!success) {

    auto response = SetBrowsedPlayerResponseBuilder::MakeBuilder(

        Status::INVALID_PLAYER_ID, 0x0000, num_items, 0, "");

    send_message(label, true, std::move(response));

    return;

  }

  curr_browsed_player_id_ = pkt->GetPlayerId();

  // Clear the path and push the new root.