message: Reduce the scope of a variable
  Reflecting review comments.
diff: @@ -1232,13 +1232,12 @@ void ApplicationManagerImpl::OnStreamingConfigured(
  using namespace protocol_handler;
  LOG4CXX_AUTO_TRACE(logger_);
  - std::vector<std::string> empty;
  -
  LOG4CXX_INFO(logger_,
  "OnStreamingConfigured called for service "
  << service_type << ", result=" << result);
  if (result) {
  + std::vector<std::string> empty;
  {
  sync_primitives::AutoLock lock(navi_service_status_lock_);
  