/**
  * Check to see if a tool placement is hidden. Can be used to check is a page should be hidden.
  */
 public boolean isHidden(Placement placement) {
   return toolHelper.isHidden(placement);
 }
 /**
  * @see org.sakaiproject.portal.api.PortalSiteHelper#allowTool(org.sakaiproject.site.api.Site,
  *     org.sakaiproject.tool.api.Placement)
  */
 public boolean allowTool(Site site, Placement placement) {
   return toolHelper.allowTool(site, placement);
 }