Show singleton tab instead of opening multiple help tabs

Show singleton tab instead of opening multiple help tabs


BUG=87356
TEST=

[keishi-hattori, 2011-06-24 10:56:49]

I'm not sure if this is a good idea but I didn't see why not.

[Ben Goodger (Google), 2011-06-24 15:08:03]

LGTM

[Nikita (slow), 2011-06-24 17:58:40]

LGTM

[commit-bot: I haz the power, 2011-06-26 17:30:59]

Presubmit check for 7239022-1 failed and returned exit status 1.

Running presubmit commit checks ...

** Presubmit Messages **
If this change requires manual test instructions to QA team, add
TEST=[instructions].

** Presubmit Warnings **
casey.hattori@gmail.com is not in AUTHORS file. If you are a new contributor,
please visit
http://www.chromium.org/developers/contributing-code and read the "Legal"
section
If you are a chromite, verify the contributor signed the CLA.

[keishi-hattori, 2011-06-28 09:37:52]

On 2011/06/26 17:30:59, I haz the power (commit-bot) wrote:
> Presubmit check for 7239022-1 failed and returned exit status 1.
> 
> Running presubmit commit checks ...
> 

I can't commit with this account so I moved the patch to a new issue from my
google.com account.
http://codereview.chromium.org/7276030/

[Nikita (slow), 2011-07-06 10:40:42]

Please check "commit" checkbox right below the patchset.
This will commit on your behalf.

[Nikita (slow), 2011-07-06 10:41:33]

On 2011/07/06 10:40:42, Nikita Kostylev wrote:
> Please check "commit" checkbox right below the patchset.
> This will commit on your behalf.

Ok, I've read commit-bot error message now.