Fix first page of app list not rendering in RTL.

Fix first page of app list not rendering in RTL.

This CL fixes an issue causing the app list to render without any apps
when shown in an RTL language.

BUG=422604
Committed: https://crrev.com/cf93cf2fc923dddf1fbe59300db655a7183b2ae3
Cr-Commit-Position: refs/heads/master@{#300229}

[calamity, 2014-10-17 06:47:21]

Patchset #1 (id:1) has been deleted

[calamity, 2014-10-17 06:53:54]

Patchset #1 (id:20001) has been deleted

[calamity, 2014-10-17 06:54:04]

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

[tapted, 2014-10-17 09:41:03]

I guess this is just restoring some old code, so other regressions are unlikely.
Is it bizarre? Maybe it needs a comment in case someone wants to delete it
again. Otherwise lgtm.

[calamity, 2014-10-20 04:15:06]

On 2014/10/17 09:41:03, tapted wrote:
> I guess this is just restoring some old code, so other regressions are
unlikely.
> Is it bizarre? Maybe it needs a comment in case someone wants to delete it
> again. Otherwise lgtm.

Hmmm. I think that this is actually hiding a different issue. On Linux without
ash, this issue exists before r294555. It's possible layouts and painting are
interleaving weird. Dunno.

I think we can just land and merge this for M39.

[calamity, 2014-10-20 04:15:10]

The CQ bit was checked by calamity@chromium.org

[commit-bot: I haz the power, 2014-10-20 04:16:39]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/656343003/50001

[commit-bot: I haz the power, 2014-10-20 09:30:58]

Committed patchset #2 (id:50001)

[commit-bot: I haz the power, 2014-10-20 09:31:44]

Patchset 2 (id:??) landed as
https://crrev.com/cf93cf2fc923dddf1fbe59300db655a7183b2ae3
Cr-Commit-Position: refs/heads/master@{#300229}