Add a backwards compatibility unittest.

Add a backwards compatibility unittest.

This is a resubmit of CL 7915007.

BUG=None
TEST=New Unittest


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=102428

[dgarrett, 2011-09-21 21:06:54]

I believe this to be a valid CL and that the trybot problems are unreleased. I
don't believe it to be a CR/LF issue because it passes on the win trybot when I
run it directly.

Other than the weird error seen during the previous submission attempt, I
haven't seen this test fail when run despite numerous attempts. Most trybot runs
are failing for me in other un-releated tests, but I don't see how this could
possibly cause this.

[sra1, 2011-09-22 02:47:42]

LGTM

[dgarrett, 2011-09-22 18:14:49]

Stephen... are the courgette tests run as part of the try bot results, or only
during the build?

Checking back, I have successful trybot runs, but can't seem to find the
courgette results in them.

[sra1, 2011-09-22 18:32:10]

On Thu, Sep 22, 2011 at 11:14 AM, <dgarrett@chromium.org> wrote:

> Stephen... are the courgette tests run as part of the try bot results, or
> only
> during the build?
>

Sorry, I don't know.  It is possible that they are not run at all on the try
bot.


> Checking back, I have successful trybot runs, but can't seem to find the
> courgette results in them.
>
>
>
http://codereview.chromium.**org/7976035/<http://codereview.chromium.org/7976...
>

[commit-bot: I haz the power, 2011-09-22 23:58:00]

CQ is trying tha patch. Follow status at
https://chromium-status.appspot.com/cq/dgarrett@chromium.org/7976035/1

[commit-bot: I haz the power, 2011-09-23 02:33:45]

Change committed as 102428

[dgarrett, 2011-09-23 03:07:12]

And the same problem is happening again. These tests must not be running on the
trybots.

I wonder if I can get them activated there while working on this stuff?

[dgarrett, 2011-09-23 03:08:05]

And the same problem is happening again. These tests must not be running on the
trybots.

I wonder if I can get them activated there while working on this stuff?