Hi Dale, would you mind helping confirm Findit's results? We're actively trying to improve the flake analyzer to find culprits that cause tests to be flaky, so if this is a false positive or noise feel free to close.

Thanks,
Jeff on behalf of Findit team

 Issue 719497  has been merged into this issue.

Yeah, seems correct since that CL introduced the test :) Will take a look. Thanks!

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a692b66c652e1e0fd2446f469093ee3e5d81539d

commit a692b66c652e1e0fd2446f469093ee3e5d81539d
Author: dalecurtis <dalecurtis@chromium.org>
Date: Fri May 19 01:42:50 2017

Fix flakiness in MultithreadedMetrics test for single sample metrics.

Metric shutdown ends up posting a few tasks for which our simple
DoNothing trampoline was insufficient to ensure they completed.
Instead shutdown the thread since we don't need it anymore anyways;
this waits for all posted tasks to complete.

BUG= 718973 
TEST=ran android test 25 times without failure, failed immediately
prior to this fix.

Review-Url: https://codereview.chromium.org/2894553004
Cr-Commit-Position: refs/heads/master@{#473023}

[modify] https://crrev.com/a692b66c652e1e0fd2446f469093ee3e5d81539d/components/metrics/single_sample_metrics_factory_impl_unittest.cc