Build crash_service in Win GN builds.

Build crash_service in Win GN builds.

R=scottmg@chromium.org, mark@chromium.org
BUG=354261
CQ_EXTRA_TRYBOTS=tryserver.chromium.win:win8_chromium_gn_rel,win8_chromium_gn_dbg,win_chromium_gn_x64_rel,win_chromium_gn_x64_dbg

Committed: https://crrev.com/db5a56c70e825e9d7492b4e05827d315349ff23d
Cr-Commit-Position: refs/heads/master@{#327521}

[scottmg, 2015-04-29 02:29:12]

lgtm

[Dirk Pranke, 2015-04-29 02:29:39]

The CQ bit was checked by dpranke@chromium.org

[Dirk Pranke, 2015-04-29 02:29:48]

The CQ bit was unchecked by dpranke@chromium.org

[Dirk Pranke, 2015-04-29 02:30:20]

The CQ bit was checked by dpranke@chromium.org

[commit-bot: I haz the power, 2015-04-29 02:31:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1115533002/1

[commit-bot: I haz the power, 2015-04-29 06:35:34]

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

[commit-bot: I haz the power, 2015-04-29 06:35:34]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_TIMED_OUT,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[Dirk Pranke, 2015-04-29 15:25:06]

dpranke@chromium.org changed reviewers:
+ mark@chromium.org

[Dirk Pranke, 2015-04-29 15:25:28]

I'm surprised that Scott isn't an owner of this ... Mark, can I get an OWNER
approval?

[Mark Mentovai, 2015-04-29 17:55:32]

LGTM, and Scott, you can also send me something to OWN this directory if you’d
like.

[Dirk Pranke, 2015-04-29 17:55:50]

The CQ bit was checked by dpranke@chromium.org

[commit-bot: I haz the power, 2015-04-29 17:57:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1115533002/1

[commit-bot: I haz the power, 2015-04-29 18:01:21]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-29 18:02:24]

Patchset 1 (id:??) landed as
https://crrev.com/db5a56c70e825e9d7492b4e05827d315349ff23d
Cr-Commit-Position: refs/heads/master@{#327521}