base: Minor cleanups in icu_util.h

base: Minor cleanups in icu_util.h

- Move it into base::i18n namespace. That is the namespace that should be used
there.
- Consequently, rename the function to InitializeICU().

R=brettw@chromium.org
TBR=ben,thestig,jam

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=219164

[brettw, 2013-08-20 05:10:40]

lgtm

[commit-bot: I haz the power, 2013-08-22 22:15:06]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tfarina@chromium.org/22875025/1

[commit-bot: I haz the power, 2013-08-22 22:37:41]

Retried try job too often on chromium_presubmit for step(s) presubmit
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=chromium_p...

[tfarina, 2013-08-22 22:46:02]

TBRing the other owners for the api call updates.

[commit-bot: I haz the power, 2013-08-22 22:47:09]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tfarina@chromium.org/22875025/1

[Lei Zhang, 2013-08-22 22:48:02]

lgtm

[commit-bot: I haz the power, 2013-08-23 00:39:15]

Change committed as 219164