GitLab

crostini: use async in page tests

Bug: None
Change-Id: I2ffbdec3ccf5fc94118e2080df159bc78869c711
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2084034
Commit-Queue: Julian Watson <juwa@google.com>
Auto-Submit: Julian Watson <juwa@google.com>
Reviewed-by: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#746232}