Revert of ChromeOS: should not show "Language changed" notification for certain languages.

Revert of ChromeOS: should not show "Language changed" notification for certain languages. (patchset #6 of https://codereview.chromium.org/382973002/)

Reason for revert:
Link failure of browser_tests on ChromiumOS build bot:

http://build.chromium.org/p/chromium.chromiumos/buildstatus?builder=Linux%20ChromiumOS%20Builder%20%28dbg%29&number=50192


Original issue's description:
> ChromeOS: should not show "Language changed" notification for certain languages.
> 
> BUG=317718
> TEST=manually tested
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=289985

NOTREECHECKS=true
NOTRY=true
TBR=alemate@chromium.org, nkostylev@chromium.org, jshin@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=290017

[miu, 2014-08-15 21:02:24]

Created Revert of ChromeOS: should not show "Language changed" notification for
certain languages.

[commit-bot: I haz the power, 2014-08-15 21:04:25]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miu@chromium.org/471403005/1

[commit-bot: I haz the power, 2014-08-15 21:04:26]

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

[commit-bot: I haz the power, 2014-08-15 21:04:27]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional 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.

[miu, 2014-08-15 21:09:37]

The CQ bit was checked by miu@chromium.org

[commit-bot: I haz the power, 2014-08-15 21:12:51]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miu@chromium.org/471403005/1

[commit-bot: I haz the power, 2014-08-15 21:12:52]

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

[commit-bot: I haz the power, 2014-08-15 21:12:54]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional 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.

[miu, 2014-08-15 21:21:12]

The CQ bit was checked by miu@chromium.org

[commit-bot: I haz the power, 2014-08-15 21:22:34]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/miu@chromium.org/471403005/1

[commit-bot: I haz the power, 2014-08-15 21:31:01]

Committed patchset #1 (1) as 290017