Fix unitialized pointer in RulesRegistryService.

Fix unitialized pointer in RulesRegistryService.

TBR=thestig@chromium.org
BUG=none
TEST=less memcheck issues

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=202994

[commit-bot: I haz the power, 2013-05-29 04:27:38]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dbeam@chromium.org/16094012/1

[Dan Beam, 2013-05-29 04:27:55]

note to self, can probably [re-]revert r202764 after this lands

[commit-bot: I haz the power, 2013-05-29 05:04:31]

Sorry for I got bad news for ya.
Compile failed with a clobber build on linux_chromeos_clang.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_chro...
Your code is likely broken or HEAD is junk. Please ensure your
code is not broken then alert the build sheriffs.
Look at the try server FAQ for more details.

[Lei Zhang, 2013-05-29 06:23:15]

Compile fail.

[Dan Beam, 2013-05-29 08:59:52]

d'oh

[Dan Beam, 2013-05-29 19:14:44]

fixed

[Lei Zhang, 2013-05-29 19:36:36]

lgtm

[Lei Zhang, 2013-05-29 19:37:10]

+battre FYI

[commit-bot: I haz the power, 2013-05-29 20:35:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/dbeam@chromium.org/16094012/20001

[commit-bot: I haz the power, 2013-05-29 22:53:04]

Change committed as 202994

[Dan Beam, 2013-05-29 23:16:31]

On 2013/05/29 04:27:55, Dan Beam wrote:
> note to self, can probably [re-]revert r202764 after this lands

other note to self - it was actually r202751