Make logging in test_importer.py quieter.

Make logging in test_importer.py quieter.

Reason: Currently, files may be skipped when importing, but the reason
why they're skipped is buried in hundreds of lines of logging. This
CL changes logging so that all entries listing individual files and
directories in normal operation are changed to "debug" level.

BUG=684029
Review-Url: https://codereview.chromium.org/2654873003
Cr-Commit-Position: refs/heads/master@{#445798}
Committed: https://chromium.googlesource.com/chromium/src/+/76cbd1cf8bb3c100994df4d28a8357008428ea8f

[qyearsley, 2017-01-24 18:31:27]

qyearsley@chromium.org changed reviewers:
+ jeffcarp@chromium.org

[jeffcarp, 2017-01-24 19:28:50]

lgtm

[qyearsley, 2017-01-24 19:30:09]

The CQ bit was checked by qyearsley@chromium.org

[commit-bot: I haz the power, 2017-01-24 19:30:50]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-24 20:43:57]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485286209504170, "parent_rev":
"09b64d2271dec56ef2c739809abc499263926b69", "commit_rev":
"76cbd1cf8bb3c100994df4d28a8357008428ea8f"}

[commit-bot: I haz the power, 2017-01-24 20:44:51]

Description was changed from

==========
Make logging in test_importer.py quieter.

Reason: Currently, files may be skipped when importing, but the reason
why they're skipped is buried in hundreds of lines of logging. This
CL changes logging so that all entries listing individual files and
directories in normal operation are changed to "debug" level.

BUG=684029
==========

to

==========
Make logging in test_importer.py quieter.

Reason: Currently, files may be skipped when importing, but the reason
why they're skipped is buried in hundreds of lines of logging. This
CL changes logging so that all entries listing individual files and
directories in normal operation are changed to "debug" level.

BUG=684029

Review-Url: https://codereview.chromium.org/2654873003
Cr-Commit-Position: refs/heads/master@{#445798}
Committed:
https://chromium.googlesource.com/chromium/src/+/76cbd1cf8bb3c100994df4d28a83...
==========

[commit-bot: I haz the power, 2017-01-24 20:44:52]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/76cbd1cf8bb3c100994df4d28a83...