Fixed that the column header of file list placed incorrectly after double click on separator.

Fixed that the column header of file list placed incorrectly after double click on separator.

This issue was caused by that while the columns were rendered with display:flex,
splitters used (-webkit-)margin-start with column width in column_model to set their positions.
When total width of columns exceeds width of a table, rendered width becomes different from width in column_model due to display:flex.
Fixed this by keeping total width with calling setWidthAndKeepTotal instead of setWidth.

BUG=408035
TEST=Narrow window so that at least file name is cropped; Double click the header's separator at the right side of Name column.

Committed: https://crrev.com/bf6897a84c8a7f08e4c2cd8506b833d93a504ab8
Cr-Commit-Position: refs/heads/master@{#298206}

[yawano, 2014-10-06 02:24:08]

yawano@chromium.org changed reviewers:
+ fukino@chromium.org

[yawano, 2014-10-06 02:24:09]

PTAL.

[fukino, 2014-10-06 05:43:18]

On 2014/10/06 02:24:09, yawano wrote:
> PTAL.

Are all files uploaded? I couldn't find any caller of fitColumn().

[fukino, 2014-10-06 05:44:58]

On 2014/10/06 05:43:18, fukino wrote:
> On 2014/10/06 02:24:09, yawano wrote:
> > PTAL.
> 
> Are all files uploaded? I couldn't find any caller of fitColumn().

Ah, sorry. It's cr.ui.Table's.

[fukino, 2014-10-06 06:01:25]

Could you provide a description? about:
- What caused the problem.
- How you fixed the root cause.

[yawano, 2014-10-06 06:14:14]

On 2014/10/06 06:01:25, fukino wrote:
> Could you provide a description? about:
> - What caused the problem.
> - How you fixed the root cause.

Thanks for the review.
I updated the description.

[fukino, 2014-10-06 06:54:39]

On 2014/10/06 06:14:14, yawano wrote:
> On 2014/10/06 06:01:25, fukino wrote:
> > Could you provide a description? about:
> > - What caused the problem.
> > - How you fixed the root cause.
> 
> Thanks for the review.
> I updated the description.

Thanks. lgtm.

[yawano, 2014-10-06 07:51:29]

The CQ bit was checked by yawano@chromium.org

[commit-bot: I haz the power, 2014-10-06 07:52:25]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/634433002/1

[commit-bot: I haz the power, 2014-10-06 09:14:49]

Committed patchset #1 (id:1) as e1fd81d857200c80404d86ba52104bc43a99bcbd

[commit-bot: I haz the power, 2014-10-06 09:15:53]

Patchset 1 (id:??) landed as
https://crrev.com/bf6897a84c8a7f08e4c2cd8506b833d93a504ab8
Cr-Commit-Position: refs/heads/master@{#298206}