GitLab

The test has been flaky recently:
https://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=BackgroundFetchBrowserTest.OfflineItemCollection_VerifyResourceDownloadedWhenDownloadTotalLargerThanActualSize&testType=browser_tests

See the linked bug for details.
TBR=rayankans@chromium.org

Bug: 1161369
Change-Id: I063fa10ce855471b181ebeab4c9e4dc974c03e46
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2633361Reviewed-by: Anatoliy Potapchuk <apotapchuk@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Commit-Queue: Anatoliy Potapchuk <apotapchuk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844083}