Change Chrome-linux trybot to Dart 2 mode

Change-Id: I901667843d8ce5732e145175b961b27677bdf8dd
Reviewed-on: https://dart-review.googlesource.com/64300
Commit-Queue: William Hesse <whesse@google.com>
Reviewed-by: Jonas Termansen <sortie@google.com>
diff --git a/tools/infra/config/cq.cfg b/tools/infra/config/cq.cfg
index 0b9f970..74b7c37 100644
--- a/tools/infra/config/cq.cfg
+++ b/tools/infra/config/cq.cfg
@@ -22,7 +22,7 @@
       builders { name: "analyzer-linux-release-try" }
       builders { name: "benchmark-linux-try" }
       builders { name: "dart-sdk-windows-try" }
-      builders { name: "dart2js-linux-x64-chrome-try" }
+      builders { name: "dart2js-strong-linux-x64-chrome-try" }
       builders { name: "dart2js-minified-strong-linux-x64-d8-try" }
       builders { name: "dart2js-strong-hostasserts-linux-ia32-d8-try" }
       builders { name: "dart2js-unit-linux-x64-release-try" }