Fix isolate tests flakiness because of test_data/chrome/browser/resources/print_preview.

Fix isolate tests flakiness because of test_data/chrome/browser/resources/print_preview.

BUG=722123
Review-Url: https://codereview.chromium.org/2886493002
Cr-Commit-Position: refs/heads/master@{#471856}
Committed: https://chromium.googlesource.com/chromium/src/+/0712667572b158d0613b5f5a2ec8fa6f61cada34

[dpapad, 2017-05-15 17:29:37]

The CQ bit was checked by dpapad@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-05-15 17:30:28]

Dry run: CQ is trying da patch.

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

[dpapad, 2017-05-15 17:33:08]

The CQ bit was checked by dpapad@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-05-15 17:33:47]

Dry run: CQ is trying da patch.

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

[Nico, 2017-05-15 17:43:46]

thakis@chromium.org changed reviewers:
+ thakis@chromium.org

[Nico, 2017-05-15 17:43:47]

patch set 2 lgtm as far as I can tell. Thanks!

[dpapad, 2017-05-15 17:47:54]

The CQ bit was unchecked by dpapad@chromium.org

[dpapad, 2017-05-15 17:47:57]

The CQ bit was checked by dpapad@chromium.org

[commit-bot: I haz the power, 2017-05-15 17:48:20]

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, 2017-05-15 19:11:02]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1494870477291010,
"parent_rev": "a5a538f9d1c209828582674ff09a11fe12dce47c", "commit_rev":
"0712667572b158d0613b5f5a2ec8fa6f61cada34"}

[commit-bot: I haz the power, 2017-05-15 19:11:14]

Description was changed from

==========
Fix isolate tests flakiness because of
test_data/chrome/browser/resources/print_preview.

BUG=722123
==========

to

==========
Fix isolate tests flakiness because of
test_data/chrome/browser/resources/print_preview.

BUG=722123

Review-Url: https://codereview.chromium.org/2886493002
Cr-Commit-Position: refs/heads/master@{#471856}
Committed:
https://chromium.googlesource.com/chromium/src/+/0712667572b158d0613b5f5a2ec8...
==========

[commit-bot: I haz the power, 2017-05-15 19:11:16]

Committed patchset #2 (id:20001) as
https://chromium.googlesource.com/chromium/src/+/0712667572b158d0613b5f5a2ec8...