use authtoken for session quota restrictions

closes #15360

pkg/api/http_server.go

@@ -24,6 +24,7 @@ import (
 	"github.com/grafana/grafana/pkg/services/cache"
 	"github.com/grafana/grafana/pkg/services/datasources"
 	"github.com/grafana/grafana/pkg/services/hooks"
+	"github.com/grafana/grafana/pkg/services/quota"
 	"github.com/grafana/grafana/pkg/services/rendering"
 	"github.com/grafana/grafana/pkg/services/session"
 	"github.com/grafana/grafana/pkg/setting"
@@ -55,6 +56,7 @@ type HTTPServer struct {
 	CacheService     *cache.CacheService      `inject:""`
 	DatasourceCache  datasources.CacheService `inject:""`
 	AuthTokenService models.UserTokenService  `inject:""`
+	QuotaService     *quota.QuotaService      `inject:""`
 }
 
 func (hs *HTTPServer) Init() error {