Make get_drt.py work in Windows.

Make get_drt.py work in Windows.
Committed: https://code.google.com/p/dart/source/detail?r=6969

[vsm, 2012-04-25 18:34:22]

lgtm :-)

[Emily Fortuna, 2012-04-25 18:38:58]

https://chromiumcodereview.appspot.com/10224006/diff/1/tools/get_drt.py
File tools/get_drt.py (right):

https://chromiumcodereview.appspot.com/10224006/diff/1/tools/get_drt.py#newco...
tools/get_drt.py:162: unzipped_dir = os.path.join(temp_dir,
os.path.basename(latest)[:-4]) # remove .zip
greater than 80 char

https://chromiumcodereview.appspot.com/10224006/diff/1/tools/testing/perf_tes...
File tools/testing/perf_testing/run_perf_tests.py (right):

https://chromiumcodereview.appspot.com/10224006/diff/1/tools/testing/perf_tes...
tools/testing/perf_testing/run_perf_tests.py:404: subprocess.call(get_dartium,
shell=has_shell)
How about:
p = subprocess.Popen(cmd_list, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
hell=self.has_shell)	  
output, stderr = p.communicate(std_in);
if output:
  print output
if stderr:
  print stderr

We want the output from this call to not be swallowed in case there's an error.

[Emily Fortuna, 2012-04-25 18:48:12]

lgtm!!