Stop unfinished speech query from appearing in app list reopen.

Stop unfinished speech query from appearing in app list reopen.

This CL fixes an issue where a speech query in the app list, that was
interrupted by the app list closing, would complete when the app list
was reopened.

BUG=440061
Committed: https://crrev.com/332f0228d0231cf7b3c7d9bdbc4b9c3d35e9899c
Cr-Commit-Position: refs/heads/master@{#314523}

[calamity, 2015-02-04 07:34:34]

calamity@chromium.org changed reviewers:
+ amistry@chromium.org

[Anand Mistry (off Chromium), 2015-02-04 07:37:27]

lgtm

[calamity, 2015-02-04 07:40:58]

The CQ bit was checked by calamity@chromium.org

[commit-bot: I haz the power, 2015-02-04 07:41:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/886353004/1

[commit-bot: I haz the power, 2015-02-04 08:32:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-04 08:33:15]

Patchset 1 (id:??) landed as
https://crrev.com/332f0228d0231cf7b3c7d9bdbc4b9c3d35e9899c
Cr-Commit-Position: refs/heads/master@{#314523}