[ChromeDriver] Disable flaky file download test

Python test ChromeDownloadDirTest.testFileDownloadWithClick is flaky
on Windows, and also appears to cause a few other tests to fail.
Disable it for now.

Bug: 946704
Change-Id: I50c91c66725eb3b548d8dafc5e62224008dcc141
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1572966
Auto-Submit: John Chen <johnchen@chromium.org>
Commit-Queue: Caleb Rouleau <crouleau@chromium.org>
Reviewed-by: Caleb Rouleau <crouleau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#652159}
1 file changed