ash: Rename GetLauncherItemIndexForType to GetShelfItemIndexForType().

ash: Rename GetLauncherItemIndexForType to GetShelfItemIndexForType().

- move launcher_model_util.* from launcher/ to shelf/
- rename to shelf_model_util.*

BUG=248353
TEST=None, no functional changes
R=harrym@chromium.org,jamescook@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=232415

[Harry McCleave, 2013-10-31 22:42:42]

lgtm

[James Cook, 2013-11-01 00:10:55]

LGTM, and thanks for doing this. The launcher to shelf conversion will really
help new people picking up the ash code.

[commit-bot: I haz the power, 2013-11-01 01:13:30]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tfarina@chromium.org/53513003/110001

[commit-bot: I haz the power, 2013-11-01 06:29:43]

Retried try job too often on win7_aura for step(s) browser_tests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win7_aura&...

[commit-bot: I haz the power, 2013-11-01 12:57:39]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tfarina@chromium.org/53513003/110001

[commit-bot: I haz the power, 2013-11-01 16:58:57]

Change committed as 232415