Add GN bots into commit queue

infra/config/cq.cfg

Index: infra/config/cq.cfg
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 90dbfc8d656ace13624aa1c63ccd4d0ecc9cc9a5..4ab16aaff580a4cb5d71c2985ff71083399546a5 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -49,6 +49,15 @@ verifiers {
       builders {
         name: "win_no_v8"
       }
+      builders {
+        name: "linux_xfa_rel_gn"

[Lei Zhang, 2016/05/12 22:12:02]

Do we want to keep them grouped as linux/mac/win?

[Wei Li, 2016/05/12 22:33:33]

For now, let's group into gn so we can clearly see whether an error is tied to
the build system. After the transition, we will regroup them.

+      }
+      builders {
+        name: "mac_xfa_rel_gn"
+      }
+      builders {
+        name: "win_xfa_64_rel_gn"
+      }
     }
   }
 }