code: public void loadWithTimeout(int timeout) {
  
          for (String stylesheet : m_stylesheets) {
              boolean alreadyLoaded = checkStylesheet(stylesheet);
              if (alreadyLoaded) {
                  m_loadCounter += 1;
              } else {
                  appendStylesheet(stylesheet, m_jsCallback);
              }
          }
          checkAllLoaded();
          if (timeout > 0) {
              Timer timer = new Timer() {
  
                  @SuppressWarnings("synthetic-access")
                  @Override
                  public void run() {
  
                      callCallback();
                  }
              };
  
              timer.schedule(timeout);
          }
      }
docs: Starts the loading process and creates a timer that sets of the callback after a given tiime if it hasn't already been triggered.
  
  @param timeout number of milliseconds after which the callback should be called if it hasn't already been