SetupUtilTest.DeleteFileFromTempProcess failed with:

[ RUN      ] SetupUtilTest.DeleteFileFromTempProcess
../../chrome/installer/setup/setup_util_unittest.cc(94): error: Value of: base::PathExists(test_file)
  Actual: true
Expected: false

https://ci.chromium.org/buildbot/chromium.win/Win7%20Tests%20%28dbg%29%281%29/67156

I recommend changing the Sleep in https://cs.chromium.org/chromium/src/chrome/installer/setup/setup_util_unittest.cc?l=93&rcl=08e6dbe85a31d9283d6f2829535f02fac124a7c4 with a loop that regularly checks the condition until it is met. A test that sleeps is always flaky.