Added logging in PolicyBase::AddRule.

Added logging in PolicyBase::AddRule.
Should help to investigate sandbox failures on user side.
Logs from the attached bug have records about failed start of utility process, but without clues about cause.

BUG=408184
Committed: https://crrev.com/aee11c59978fde972bca81c036ca017a9fbed0a4
Cr-Commit-Position: refs/heads/master@{#293647}

[Vitaly Buka (NO REVIEWS), 2014-09-05 18:02:28]

vitalybuka@chromium.org changed reviewers:
+ cpu@chromium.org, rvargas@chromium.org

[rvargas (doing something else), 2014-09-05 18:50:36]

lgtm after reordering the cc file to follow the header

https://codereview.chromium.org/546903002/diff/40001/sandbox/win/src/sandbox_...
File sandbox/win/src/sandbox_policy_base.h (right):

https://codereview.chromium.org/546903002/diff/40001/sandbox/win/src/sandbox_...
sandbox/win/src/sandbox_policy_base.h:118: // Adds a policy rule effective for
processes spawned using this policy.
nit: drop the comment, or replace with something like "implementation of
AddRule", but that is an obvious comment given the function name.

[cpu_(ooo_6.6-7.5), 2014-09-05 20:08:12]

lgtm

[Vitaly Buka (NO REVIEWS), 2014-09-06 22:41:42]

done

https://codereview.chromium.org/546903002/diff/40001/sandbox/win/src/sandbox_...
File sandbox/win/src/sandbox_policy_base.h (right):

https://codereview.chromium.org/546903002/diff/40001/sandbox/win/src/sandbox_...
sandbox/win/src/sandbox_policy_base.h:118: // Adds a policy rule effective for
processes spawned using this policy.
On 2014/09/05 18:50:36, rvargas wrote:
> nit: drop the comment, or replace with something like "implementation of
> AddRule", but that is an obvious comment given the function name.

Done.

[Vitaly Buka (NO REVIEWS), 2014-09-06 22:41:46]

The CQ bit was checked by vitalybuka@chromium.org

[commit-bot: I haz the power, 2014-09-06 22:42:26]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/vitalybuka@chromium.org/546903002/60001

[commit-bot: I haz the power, 2014-09-07 00:33:23]

Committed patchset #4 (id:60001) as ab09e602ff1d489418aa1daa5a4441d7408b5957

[commit-bot: I haz the power, 2014-09-10 03:43:45]

Patchset 4 (id:??) landed as
https://crrev.com/aee11c59978fde972bca81c036ca017a9fbed0a4
Cr-Commit-Position: refs/heads/master@{#293647}