Handle timeouts in drt-trampoline on Windows.

Handle timeouts in drt-trampoline on Windows.

This will make timeout of drt tests work on Windows. Killing
dtr-trampoline did not kill DumpRenderTree on Windows.

R=kustermann@google.com,ricow@google.com
BUG=

Committed: https://code.google.com/p/dart/source/detail?r=16110

[kustermann, 2012-12-13 14:10:02]

https://codereview.chromium.org/11578003/diff/1/tools/testing/drt-trampoline.py
File tools/testing/drt-trampoline.py (right):

https://codereview.chromium.org/11578003/diff/1/tools/testing/drt-trampoline....
tools/testing/drt-trampoline.py:101: version = ".".join(map(str,
sys.version_info[:2]))
I think "str" is not defined here

[kustermann, 2012-12-13 14:11:06]

LGTM

https://codereview.chromium.org/11578003/diff/1/tools/testing/drt-trampoline.py
File tools/testing/drt-trampoline.py (right):

https://codereview.chromium.org/11578003/diff/1/tools/testing/drt-trampoline....
tools/testing/drt-trampoline.py:101: version = ".".join(map(str,
sys.version_info[:2]))
On 2012/12/13 14:10:02, kustermann wrote:
> I think "str" is not defined here
Sorry, I forgot that it's in the builtins.

[Mads Ager (google), 2012-12-13 14:13:39]

Thanks Martin, I simplified the error message anyway.

[ricow1, 2012-12-13 14:17:26]

LGTM, you could add more verbose error message stating that there might be
hanging processes