Fix RTL issue in the extensions page.

For two elements (the webstore icon and the configure commands link) the handling for rtl direction was missing. This changelist addresses this issue.
See screenshots here:
before: https://docs.google.com/a/google.com/file/d/0BzMCIwDgeNezS05UWTFOUkZoSUE/edit?usp=sharing
after: https://docs.google.com/a/google.com/file/d/0BzMCIwDgeNezUjlQV05zZkIxcFU/edit?usp=sharing

BUG=176255
TEST=manual

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=182780

[Adrian Kuegel, 2013-02-14 13:21:09]

Hi Jeremy,

can you please review my changes?

Kind regards,
Adrian

[jeremy, 2013-02-14 13:23:26]

Can you please send me a before/after screenshot? 

Also in the screenshot you sent the checkmark for the "enabled" checkbox for
each extension is incorrectly flipped, can you flip it back?

[Adrian Kuegel, 2013-02-14 13:30:43]

Thanks for the fast response. It seems there are more RTL issues with this page
than I expected. I didn't change anything related to the "enabled" checkbox, so
this seems to be a bug, too. Could you please give me a pointer where I can see
how checkboxes should be handled correctly?
I uploaded a before screenshot now.

[jeremy, 2013-02-14 13:33:27]

The checkbox graphic should look the same as it does in LTR, if you look closely
you'll be able to see that the checkmark is flipped horizontally for some reason
:o/

**Really sorry** to trouble you further but can you upload before/after pics in
Hebrew, I can't read Arabic.

Thanks for fixing this!!

[Adrian Kuegel, 2013-02-14 13:50:37]

I have some difficulties with creating screenshots using Hebrew. Everytime I try
to start Chrome with LANGUAGE=he, it crashes. Any idea what I might do wrong?
Btw, I can't read Arabic myself, I just needed any language with RTL direction
to see the result of my change.
About the checkboxes: yes, I see that too. As far as I can see, there is nothing
in the css directly which should cause this. Maybe this has to be fixed more
generally. Since I have no idea how to do this, I would suggest I fix those
things first I know how to fix, and let the other fix do someone who has the
knowledge. I was just stumbling on this bug when I was doing some modifications
on that page myself, and thought I should fix it quickly.

[jeremy, 2013-02-14 13:56:04]

LGTM, please get a review from someone who might have an opinion on the html
itself.

I'd also be grateful if you could file a bug about the checkmarks.

https://codereview.chromium.org/12252036/diff/1/chrome/browser/resources/exte...
File chrome/browser/resources/extensions/extensions.css (right):

https://codereview.chromium.org/12252036/diff/1/chrome/browser/resources/exte...
chrome/browser/resources/extensions/extensions.css:321: }
NL at end of file removed?

[Adrian Kuegel, 2013-02-14 14:02:34]

Yes, I will file a bug about the checkmarks. Thanks for your very fast responses
:-)

[Adrian Kuegel, 2013-02-14 14:03:09]

Sorry, forgot to include the comment (see below).

https://codereview.chromium.org/12252036/diff/1/chrome/browser/resources/exte...
File chrome/browser/resources/extensions/extensions.css (right):

https://codereview.chromium.org/12252036/diff/1/chrome/browser/resources/exte...
chrome/browser/resources/extensions/extensions.css:321: }
I just checked it locally to be sure, there was no NL at EOF before, and my
changelist adds a NL (which I think should be ok).

[Adrian Kuegel, 2013-02-14 14:04:26]

Finnur, could you please review this changelist and give me OWNERS approval?

[Finnur, 2013-02-15 10:23:44]

OWNERS LGTM.

Note that I'm on paternity leave, so expect delays in replying. :)

[commit-bot: I haz the power, 2013-02-15 10:43:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/akuegel@chromium.org/12252036/1

[commit-bot: I haz the power, 2013-02-15 19:27:02]

Change committed as 182780