Add UBSAN builders to the default try job set.

BUG=pdfium:1201

Change-Id: Iae3b046fbc6e48e8b89eb704a5ee0dd002182d2e
Reviewed-on: https://pdfium-review.googlesource.com/c/46392
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 0f7dbdd..6070339 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -49,6 +49,9 @@
         name: "linux_skia_paths"
       }
       builders {
+        name: "linux_ubsan"
+      }
+      builders {
         name: "linux_xfa"
       }
       builders {
@@ -64,6 +67,9 @@
         name: "linux_xfa_rel"
       }
       builders {
+        name: "linux_xfa_ubsan"
+      }
+      builders {
         name: "mac"
       }
       builders {