Fix presubmit_unittests on some versions of python2.5....

Fix presubmit_unittests on some versions of python2.5.

On our hardy boxes, the python has the json module, but it doesn't
have all the expected methods.  Fallback to simplejson if it
doesn't have json.loads().


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=43907

[M-A Ruel, 2010-04-08 01:31:58]

lgtm

http://codereview.chromium.org/1520025/diff/1/2
File presubmit_support.py (right):

http://codereview.chromium.org/1520025/diff/1/2#newcode44
presubmit_support.py:44: json.loads
That doesn't throw on 2.6?

In any case, even if it would, at worst it'll fallback to the embedded version
so it's no big deal.

[tony, 2010-04-08 01:38:00]

On 2010/04/08 01:31:58, Marc-Antoine Ruel wrote:
> lgtm
> 
> http://codereview.chromium.org/1520025/diff/1/2
> File presubmit_support.py (right):
> 
> http://codereview.chromium.org/1520025/diff/1/2#newcode44
> presubmit_support.py:44: json.loads
> That doesn't throw on 2.6?
> 
> In any case, even if it would, at worst it'll fallback to the embedded version
> so it's no big deal.

Tried python2.5 and 2.6 on my mac.  Works fine (uses the system json) when using
python2.6.