CRASH (net_unittests) decoding for disable_crtdbg

_From [bruen...@google.com](https://code.google.com/u/109494838902877177630/) on March 05, 2014 12:59:43_

This happened once, with the prior and subsequent runs working fine: http://build.chromium.org/p/chromium.memory.fyi/builders/Windows%20Unit%20%28DrMemory%20full%29%20%281%29/builds/646/steps/memory%20test%3A%20net/logs/stdio [----------] 1 test from SSLClientSocketCertRequestInfoTest
[ RUN ] SSLClientSocketCertRequestInfoTest.TwoAuthorities
HTTPS server started on 127.0.0.1:49714...
sending server_data: {"host": "127.0.0.1", "port": 49714} (36 bytes)

~~Dr.M~~ WARNING: application exited with abnormal code 0xffffffff

% bin/symquery.exe -e dynamorio/lib32/release/dynamorio.dll -f -a 0x6a057 0x6a3e5
decode_common+0x27
e:\b\build\slave\win-builder\drmemory\dynamorio\core\x86\decode.c:1946+0x0
decode+0x15
e:\b\build\slave\win-builder\drmemory\dynamorio\core\x86\decode.c:2092+0x12
% bin/symquery.exe -e bin/release/drmemorylib.dll -f -a 0x29dbc 0x2a9b4 0x2b160 0x2de7e 0x02c2a 0x4fea6
disable_crtdbg+0x3c
e:\b\build\slave\win-builder\drmemory\common\alloc.c:1333+0xe
add_to_alloc_set+0x44
e:\b\build\slave\win-builder\drmemory\common\alloc.c:1913+0x9
find_alloc_routines+0x330
e:\b\build\slave\win-builder\drmemory\common\alloc.c:2361+0xe
alloc_module_load+0x2ae
e:\b\build\slave\win-builder\drmemory\common\alloc.c:3287+0x1c
event_module_load+0x19a
e:\b\build\slave\win-builder\drmemory\drmemory\drmemory.c:1640+0x8
drmgr_modload_event+0x96
e:\b\build\slave\win-builder\drmemory\dynamorio\ext\drmgr\drmgr.c:1261+0x11

worked in prior and subsequent runs:
[----------] 1 test from SSLClientSocketCertRequestInfoTest
[ RUN ] SSLClientSocketCertRequestInfoTest.TwoAuthorities
HTTPS server started on 127.0.0.1:49771...
sending server_data: {"host": "127.0.0.1", "port": 49771} (36 bytes)
~~1232~~ WARNING: application is missing line number information.
[ OK ] SSLClientSocketCertRequestInfoTest.TwoAuthorities (3117 ms)
[----------] 1 test from SSLClientSocketCertRequestInfoTest (3117 ms total)

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=1465_