Update the position of autocomplete list after the model is updated.

Update the position of autocomplete list after the model is updated.

When a user put one letter on search box, the position of autocomplete list is calculated incorrectly.
It's because the position is updated before the model (the list content) is updated, so the position is calculated assuming that the list is empty.
This can be fixed by updating the position after the model is updated.

BUG=404057
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=290746

[fukino, 2014-08-19 05:26:35]

@yoshiki - could you take a look?

This solves the second problem described in the issue tracker (the first one is
fixed by crrev.com/485783003)

[yoshiki, 2014-08-20 02:05:30]

lgtm

[fukino, 2014-08-20 02:25:13]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2014-08-20 02:26:16]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/fukino@chromium.org/481303002/1

[commit-bot: I haz the power, 2014-08-20 03:32:49]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/linux_gpu_trigger...)

[commit-bot: I haz the power, 2014-08-20 03:53:16]

Committed patchset #1 (1) as 290746