cq.cfg: enable experimental swarming builders

infra/config/cq.cfg

Index: infra/config/cq.cfg
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 7fe3770de0dd7c3899a470bfd9c0db1153ef7e79..517421ead4f993472830ae545f00577571e9afb0 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -17,6 +17,15 @@ verifiers {
       name: "master.tryserver.infra"
       builders { name: "Luci-GAE Linux Trusty 64 Tester" }
       builders { name: "Luci-GAE Presubmit" }
+
+      builders {
+        name: "Luci-GAE Linux Trusty 64 Tester (Swarming)"
+        experiment_percentage: 100
+      }
+      builders {
+        name: "Luci-GAE Presubmit (Swarming)"
+        experiment_percentage: 100
+      }
     }
   }
 }