Improve exception handling.

Improve exception handling.

Saves the stack trace and raise it back in the 3-tuples form so it is easier to
diagnose the root cause.

R=csharp@chromium.org
BUG=


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=161858

[csharp, 2012-10-15 15:38:27]

lgtm

https://codereview.chromium.org/11154011/diff/1/trace_inputs.py
File trace_inputs.py (right):

https://codereview.chromium.org/11154011/diff/1/trace_inputs.py#newcode3045
trace_inputs.py:3045: raise \
Would it be better to use brackets, or does raise have to be on 1 python line?

[M-A Ruel, 2012-10-15 15:40:25]

https://codereview.chromium.org/11154011/diff/1/trace_inputs.py
File trace_inputs.py (right):

https://codereview.chromium.org/11154011/diff/1/trace_inputs.py#newcode3045
trace_inputs.py:3045: raise \
On 2012/10/15 15:38:28, csharp wrote:
> Would it be better to use brackets, or does raise have to be on 1 python line?

It didn't work when I used (). :/
It's really an ancestral feature.

[commit-bot: I haz the power, 2012-10-15 15:42:10]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/maruel@chromium.org/11154011/1

[commit-bot: I haz the power, 2012-10-15 15:42:40]

Change committed as 161858