Cleanup the clobber tool (tools/clean_output_directory.py)

Cleanup the clobber tool (tools/clean_output_directory.py)

Since everything is now placed inside the build directory we can simply nuke that - if you are cross compiling the output of that should be withing HOST_OUT/TARGET_OUT.
Committed: https://code.google.com/p/dart/source/detail?r=14999

[ricow1, 2012-11-15 12:06:20]

This is dependent on:
https://codereview.chromium.org/11411004/
and
https://codereview.chromium.org/11412004/

(please note the nicely aligned numbers for those two cls :-)

[ricow1, 2012-11-15 12:34:23]

On 2012/11/15 12:06:20, ricow1 wrote:
> This is dependent on:
> https://codereview.chromium.org/11411004/
> and
> https://codereview.chromium.org/11412004/
> 
> (please note the nicely aligned numbers for those two cls :-)
Changed to use GetBuildRoot instead to avoid passing in None for the target_os

[ahe, 2012-11-15 13:59:43]

LGTM

You could inline HOST_OS.

[ricow1, 2012-11-15 14:21:33]

On 2012/11/15 13:59:43, ahe wrote:
> LGTM
> 
> You could inline HOST_OS.

I thought the clever python vm would do that for me :-)

[ricow1, 2012-11-15 14:21:50]

On 2012/11/15 14:21:33, ricow1 wrote:
> On 2012/11/15 13:59:43, ahe wrote:
> > LGTM
> > 
> > You could inline HOST_OS.
> 
> I thought the clever python vm would do that for me :-)
and done