Revert of Chrome user menu shouldn't close if a tab steals focus

Revert of Chrome user menu shouldn't close if a tab steals focus (patchset #6 id:120001 of https://codereview.chromium.org/1136693002/)

Reason for revert:
This CL revealed issues 507686, 506158, 504772, 503938, 503932. Issue 504772 and 503938 can not be solved immediately, so we revert this cl to allow time to solve them or find alternative solutions.

Original issue's description:
> Chrome user menu shouldn't close if a tab steals focus.
>
> This CL is dedicated to fix above issue and achieve below behaviors:
> 1.  User Menu does not close during sign-in flow: Things can't steal focus; the user menu stays open while you're typing / in the signin flow.
> 2.  Sign-in confirmation is modal: The user menu is not closeable until the user interacts with the signin confirmation window.  Sync should be delayed until the user interacts with the dialogue.
> 3.  Blue information box: This shouldn't go away until the user explicitly interacts with it (not you, what's new, "x").  Doesn't affect modality/close-ability of the user menu.
>
> BUG=341196
>
> Committed: https://crrev.com/131615b8cfd0e9b3045f3384e06ec3d8eb4f272a
> Cr-Commit-Position: refs/heads/master@{#330789}

TBR=rogerta@chromium.org,msw@chromium.org,groby@chromium.org,jcivelli@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=341196
Committed: https://crrev.com/15589a459c096ea61d0228b594e4d549e463e94d
Cr-Commit-Position: refs/heads/master@{#338927}

[gogerald1, 2015-07-14 14:15:50]

Created Revert of Chrome user menu shouldn't close if a tab steals focus

[commit-bot: I haz the power, 2015-07-14 14:16:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1235173002/1

[commit-bot: I haz the power, 2015-07-14 14:16:33]

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

[commit-bot: I haz the power, 2015-07-14 14:16:35]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
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.

[gogerald1, 2015-07-14 15:59:44]

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

[commit-bot: I haz the power, 2015-07-14 16:01:01]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1235173002/1

[commit-bot: I haz the power, 2015-07-14 16:01:03]

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

[commit-bot: I haz the power, 2015-07-14 16:01:05]

Dry run: No L-G-T-M from a valid reviewer yet. Only full committers are
accepted.
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.

[Roger Tawa OOO till Jul 10th, 2015-07-14 16:31:38]

lgtm

[gogerald1, 2015-07-14 16:32:06]

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

[Roger Tawa OOO till Jul 10th, 2015-07-14 16:32:29]

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

[commit-bot: I haz the power, 2015-07-14 16:33:20]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1235173002/1

[commit-bot: I haz the power, 2015-07-14 16:34:18]

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

[commit-bot: I haz the power, 2015-07-14 16:34:19]

Dry run: This issue passed the CQ dry run.

[gogerald1, 2015-07-14 17:20:39]

gogerald@chromium.org changed reviewers:
+ avi@chromium.org

[gogerald1, 2015-07-14 17:20:40]

Revert:

@avi@chromium.org
Could you help look the revert changes in ui/cocoa/* since groby is OOO.

[gogerald1, 2015-07-14 17:21:45]

gogerald@chromium.org changed reviewers:
+ phajdan.jr@chromium.org

[gogerald1, 2015-07-14 17:21:46]

phajdan.jr@chromium.org: Please review revert changes in 

chrome/test/base/test_browser_window.h

[Avi (use Gerrit), 2015-07-14 17:22:59]

If this is just a revert, lgtm

[Paweł Hajdan Jr., 2015-07-14 23:33:18]

chrome/test LGTM

[msw, 2015-07-15 21:28:34]

Thanks for explaining the reason for reverting better, lgtm.

[gogerald1, 2015-07-15 22:02:05]

The CQ bit was checked by gogerald@chromium.org

[gogerald1, 2015-07-15 22:02:34]

The CQ bit was unchecked by gogerald@chromium.org

[gogerald1, 2015-07-15 22:16:05]

The CQ bit was checked by gogerald@chromium.org

[commit-bot: I haz the power, 2015-07-15 22:17:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1235173002/1

[commit-bot: I haz the power, 2015-07-15 22:21:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-15 22:23:14]

Patchset 1 (id:??) landed as
https://crrev.com/15589a459c096ea61d0228b594e4d549e463e94d
Cr-Commit-Position: refs/heads/master@{#338927}