public void restore(@NotNull Content content) {
    GridImpl grid = getGridFor(content, false);
    if (grid == null) {
      getStateFor(content).assignTab(myLayoutSettings.getOrCreateTab(-1));
    }
    else {
      grid.getCellFor(content).restore(content);
    }
    getStateFor(content).setMinimizedInGrid(false);
    myManager.addContent(content);
    saveUiState();
  }
public void restore(@NotNull Content content)