docs: function updateWindow(tabWindow, chromeWindow) {
    // console.log("updateWindow: ", tabWindow.toJS(), chromeWindow);
    var mergedTabItems = mergeOpenTabs(tabWindow.tabItems, chromeWindow.tabs);
    var updWindow = tabWindow.set('tabItems', mergedTabItems).set('focused', chromeWindow.focused).set('open', true).set('openWindowId', chromeWindow.id);
    return updWindow;
  }