Timeout expectation for external/wpt/cookies/samesite/form-post-blank.html

TBR=mkwst

Bug: 956401
Change-Id: I3e18626e4ce5fe5e3fcccafd02c6398032d27ec1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1583789
Reviewed-by: David Roger <droger@chromium.org>
Commit-Queue: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654004}
1 file changed