Restore old bookmark bar folders on win non-MD.

Restore old bookmark bar folders on win non-MD.

Still available on win with --top-chrome-md flag, and used elsewhere by
default. This behavior approved by sgabriel.

BUG=527923
Committed: https://crrev.com/876515eddd414cb74d00079eb87c4591f5e94f54
Cr-Commit-Position: refs/heads/master@{#347749}

[Evan Stade, 2015-09-04 18:58:55]

estade@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2015-09-08 15:25:39]

LGTM

[Evan Stade, 2015-09-08 17:50:25]

The CQ bit was checked by estade@chromium.org

[commit-bot: I haz the power, 2015-09-08 17:51:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1319283004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1319283004/1

[commit-bot: I haz the power, 2015-09-08 18:38:50]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-08 18:40:06]

Patchset 1 (id:??) landed as
https://crrev.com/876515eddd414cb74d00079eb87c4591f5e94f54
Cr-Commit-Position: refs/heads/master@{#347749}