Enable Quick View on file selector / file download window.

Enable Quick View on file selector / file download window.

BUG=641617
TEST=manually tested.

Review-Url: https://codereview.chromium.org/2288663002
Cr-Commit-Position: refs/heads/master@{#415106}
(cherry picked from commit 3161c433a2fee484834a3c587e6d3ed111934f64)

[oka, 2016-09-09 00:47:47]

The CQ bit was checked by oka@chromium.org

[oka, 2016-09-09 00:48:04]

The CQ bit was unchecked by oka@chromium.org

[commit-bot: I haz the power, 2016-09-09 00:48:14]

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, 2016-09-09 00:48:15]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-09 00:48:15]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[oka, 2016-09-09 00:49:46]

Committed patchset #1 (id:1) to pending queue manually as
e54a5c3f52217ce456841d60b3d8dcdab1c015a0.