[Wallpaper Picker] Cleaned UI artefacts in Surprise Me Mode.

[Wallpaper Picker] Cleaned UI artefacts in Surprise Me Mode.

In Surprise Me mode, changes are: 
- Top categories don't highlight anymore on Hover
- Online Wallpaper Attributes (author + url + thumbnail) are not displayed
- Selected Item Checkmark is not displayed
- "Add New" button is not highlighted on Hover and don't prompt user anymore.
- White Outline on thumbnails is not displayed.

Screenshot: http://i.imgur.com/UPhSQZS.jpg

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=255379

[François Beaufort, 2014-03-05 14:01:12]

Hello Biao,

Since Surprise Me is about to be enabled by default for new Chrome OS Users,
I've played with it and started to notice some glitches.

Hopefully this CL addresses them.

[bshe, 2014-03-05 19:12:23]

lgtm with nit

https://codereview.chromium.org/183853030/diff/1/chrome/browser/resources/chr...
File
chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
(right):

https://codereview.chromium.org/183853030/diff/1/chrome/browser/resources/chr...
chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css:199:
.image-picker[disabled]~.bottom-bar #online-wallpaper-attribute,
nit: space instead of ~ ?

[François Beaufort, 2014-03-06 11:32:41]

https://codereview.chromium.org/183853030/diff/1/chrome/browser/resources/chr...
File
chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
(right):

https://codereview.chromium.org/183853030/diff/1/chrome/browser/resources/chr...
chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css:199:
.image-picker[disabled]~.bottom-bar #online-wallpaper-attribute,
It is a ~
The general sibling combinator selector is very similar to the adjacent sibling
combinator selector we just looked at. The difference is that that the element
being selected doesn't need immediately succeed the first element, but can
appear anywhere after it.

On 2014/03/05 19:12:24, bshe wrote:
> nit: space instead of ~ ?

[bshe, 2014-03-06 14:38:48]

lgtm

https://codereview.chromium.org/183853030/diff/1/chrome/browser/resources/chr...
File
chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css
(right):

https://codereview.chromium.org/183853030/diff/1/chrome/browser/resources/chr...
chrome/browser/resources/chromeos/wallpaper_manager/css/wallpaper_manager.css:199:
.image-picker[disabled]~.bottom-bar #online-wallpaper-attribute,
right, my mistake. I assumed bottom-bar is a child of image-picker.

On 2014/03/06 11:32:41, François Beaufort wrote:
> It is a ~
> The general sibling combinator selector is very similar to the adjacent
sibling
> combinator selector we just looked at. The difference is that that the element
> being selected doesn't need immediately succeed the first element, but can
> appear anywhere after it.
> 
> On 2014/03/05 19:12:24, bshe wrote:
> > nit: space instead of ~ ?
>

[François Beaufort, 2014-03-06 14:47:24]

The CQ bit was checked by beaufort.francois@gmail.com

[commit-bot: I haz the power, 2014-03-06 14:47:58]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/beaufort.francois@gmail.com/183853030/1

[commit-bot: I haz the power, 2014-03-06 17:09:48]

Change committed as 255379