Adding win_asan to CQ.

The Chromium Roll https://webrtc-review.googlesource.com/24760
introduced a breakage on win_asan. In order to re-enable the roll
we have to be protected against these kind of failures.

Bug: webrtc:8562
Change-Id: I8de6268eb1d3f87cba53889f1ae2397b3dbf491e
No-Try: True
Reviewed-on: https://webrtc-review.googlesource.com/25080
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Reviewed-by: Oleh Prypin <oprypin@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20826}
diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 8ec3fe1..2a1137a 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -63,6 +63,7 @@
       builders { name: "mac_compile_dbg" }
       builders { name: "mac_rel" }
       builders { name: "presubmit" }
+      builders { name: "win_asan" }
       builders { name: "win_baremetal" }
       builders { name: "win_clang_dbg" }
       builders { name: "win_clang_rel" }