Fix Google Closure Compiler warnings (#2112)
Fix Google Closure Compiler warnings (#2112)


kenan435/dashboard,cheld/dashboard,kubernetes/dashboard,cnwalker/dashboard,vlal/dashboard,floreks/dashboard,lenartj/dashboard,lenartj/dashboard,floreks/dashboard,floreks/dashboard,lenartj/dashboard,floreks/dashboard,cnwalker/dashboard,floreks/dashboard,cheld/dashboard,cnwalker/dashboard,kenan435/dashboard,cheld/dashboard,zreigz/dashboard,kenan435/dashboard,lenartj/dashboard,zreigz/dashboard,vlal/dashboard,cheld/dashboard,vlal/dashboard,zreigz/dashboard,kubernetes/dashboard,cnwalker/dashboard,kubernetes/dashboard,vlal/dashboard,kenan435/dashboard,kubernetes/dashboard,zreigz/dashboard,kubernetes/dashboard