Re-layout list view and add thumbnails for each files.

Re-layout list view and add thumbnails for each files.

Changes are:
- Changes layout of list view.
- Add thumbnails for each files.
- Add checkmarks for selected items.
- Selected items' colors are not inverted to blue now.

BUG=402344
TEST=run browser_tests

Committed: https://crrev.com/7529a7ac7bcf123222459fc2892f85379ff4643a
Cr-Commit-Position: refs/heads/master@{#313863}

[fukino, 2015-01-29 09:14:09]

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

[fukino, 2015-01-29 09:14:10]

PTAL. Thank you!

[hirono, 2015-01-29 09:21:49]

Please optimize the size of new pngs if you haven't yet.

https://codereview.chromium.org/886753002/diff/20001/ui/file_manager/file_man...
File ui/file_manager/file_manager/foreground/js/ui/file_table.js (right):

https://codereview.chromium.org/886753002/diff/20001/ui/file_manager/file_man...
ui/file_manager/file_manager/foreground/js/ui/file_table.js:789: entry,
ThumbnailLoader.LoaderType.IMAGE, metadata, undefined);
Why does it specify undefined?

[fukino, 2015-01-29 12:01:38]

> Please optimize the size of new pngs if you haven't yet.
I've optimizer for new PNSs. (list_checked.png, thumbnail_checked.png).
Thank you for pointing this out!

https://codereview.chromium.org/886753002/diff/20001/ui/file_manager/file_man...
File ui/file_manager/file_manager/foreground/js/ui/file_table.js (right):

https://codereview.chromium.org/886753002/diff/20001/ui/file_manager/file_man...
ui/file_manager/file_manager/foreground/js/ui/file_table.js:789: entry,
ThumbnailLoader.LoaderType.IMAGE, metadata, undefined);
On 2015/01/29 09:21:49, hirono wrote:
> Why does it specify undefined?

Oops, I wanted to use default for media type, but I didn't notice that it is the
last argument!
Done.

[hirono, 2015-01-30 01:06:56]

lgtm!

[fukino, 2015-01-30 02:48:36]

On 2015/01/30 01:06:56, hirono wrote:
> lgtm!

Thanks!

[fukino, 2015-01-30 02:48:50]

The CQ bit was checked by fukino@chromium.org

[commit-bot: I haz the power, 2015-01-30 02:49:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/886753002/40001

[commit-bot: I haz the power, 2015-01-30 03:25:08]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-01-30 03:26:03]

Patchset 3 (id:??) landed as
https://crrev.com/7529a7ac7bcf123222459fc2892f85379ff4643a
Cr-Commit-Position: refs/heads/master@{#313863}