GitLab

Several of the tests depended on 'src' being a directory in the path to
expand_owners_unittest.py. However, on testing bots, this may not be the
case.

Note that _ExtractComponentViaDirmd() had to be mocked in several tests
due to http://crbug.com/1164985. One test was skipped due to this.

Also, removed testGetHigherLevelPathGivenPathInSrcDirectory since it
assumed 'src' would be in the path. It's okay to remove this because
we have a test checking that getting higher-level OWNERS file paths
doesn't result in a recursive loop.

Bug: 1126653
Change-Id: I5b6d4289dff3b5c9afe0fcc8249328d9059cedc4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2622320
Commit-Queue: Caitlin Fischer <caitlinfischer@google.com>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844079}