vs2015: fix narrowing warnings in sandbox/win/

vs2015: fix narrowing warnings in sandbox/win/

d:\src\cr2\src\sandbox\win\src\broker_services.cc(282): warning C4311: 'reinterpret_cast': pointer truncation from 'LPOVERLAPPED' to 'DWORD'
d:\src\cr2\src\sandbox\win\src\broker_services.cc(282): warning C4302: 'reinterpret_cast': truncation from 'LPOVERLAPPED' to 'DWORD'
d:\src\cr2\src\sandbox\win\src\broker_services.cc(312): warning C4311: 'reinterpret_cast': pointer truncation from 'LPOVERLAPPED' to 'DWORD'
d:\src\cr2\src\sandbox\win\src\broker_services.cc(312): warning C4302: 'reinterpret_cast': truncation from 'LPOVERLAPPED' to 'DWORD'
d:\src\cr2\src\sandbox\win\src\broker_services.cc(546): warning C4312: 'reinterpret_cast': conversion from 'DWORD' to 'LPOVERLAPPED' of greater size

d:\src\cr2\src\sandbox\win\src\eat_resolver.cc(51): warning C4302: 'reinterpret_cast': truncation from 'void *' to 'DWORD'
d:\src\cr2\src\sandbox\win\src\eat_resolver.cc(52): warning C4302: 'reinterpret_cast': truncation from 'const void *' to 'DWORD'

R=cpu@chromium.org
BUG=440500
Committed: https://crrev.com/359cb535d023f8c83f7b6a796bc43a30f4594ad7
Cr-Commit-Position: refs/heads/master@{#327868}

[scottmg, 2015-04-30 17:23:57]

I don't think these change behaviour, but please give them extra scrutiny given
their location.

[scottmg, 2015-04-30 17:24:08]

The CQ bit was checked by scottmg@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-04-30 17:24:54]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1119783002/1

[commit-bot: I haz the power, 2015-04-30 19:20:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-04-30 19:20:36]

Dry run: This issue passed the CQ dry run.

[cpu_(ooo_6.6-7.5), 2015-05-01 02:14:08]

lgtm

[cpu_(ooo_6.6-7.5), 2015-05-01 02:14:11]

The CQ bit was checked by cpu@chromium.org

[commit-bot: I haz the power, 2015-05-01 02:14:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1119783002/1

[commit-bot: I haz the power, 2015-05-01 02:50:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-01 02:51:41]

Patchset 1 (id:??) landed as
https://crrev.com/359cb535d023f8c83f7b6a796bc43a30f4594ad7
Cr-Commit-Position: refs/heads/master@{#327868}