Revert "Fixed retrieving non-initialized wallpaper information"

This reverts commit c52d0863017070b9cfe3951e68bd4bbbe102409c.
Revert "add lockscreen wallpaper (2/2)"

This reverts commit 7fe83cd5a298fc0467893e82540ecad9b82c3d32.
Frameworks: Lockscreen custom wallpaper (1/2)

kitkat now has code for a custom wallpaper image.

Using that code set a switch case to set the custom background between
  - Custom Wallpaper
  - Default background

This way allows the same overlay shadow thats set on the keyguard when
its the defualt way.

Change-Id: I98fde63ef9f3c0a5f334cd9a97b237a6f99c57f6
Lockscreen: Fix SystemUI crash on initial selection of Custom Background.

Change-Id: I8df4984f4b90d211baa888d380a95fc00a85d1ad
Keyguard: more consistency with the new lockscreen wallpaper

* In the case when the screen was off and setCustomDrawable()
was being called, and the use wallpaper is null, then we could be
setting the color filter on a null drawable.

* Fix logic when old custom background was null and the new one is also
null (but could be the user one) and the func was being returned, thus not
clearing out the current media album art.

* Move resetting the shouldShowWallpaper() flag to the show() method
so it is not being called every time the screen is turned on.

* Fix user image not showing up on first boot if it exists

Change-Id: I567c2ec8920df627835defb822c2ea25be7b3cab
Signed-off-by: Roman Birg <roman@cyngn.com>
Lockscreen wallpaper for themes

Change-Id: If77b97301c5bfebd94b193fe9a54e676e678d3ed
Keyguard : Fix album art sticking after playback is stopped

newIsNull should be populated by what is currently being set and not by
what the user's custom background is, since otherwise you end up a in state
where the user has no custom background set, music stops, no album art via arg is provided and you simply return.

Change-Id: Ifaea1cae176faaba6b32a711071f3b75ccacdd63
Style previews [1/3]

Change-Id: Ifed0ef7829eb61492a39395e8140b99f01c5e6a3
frameworks: move keyguard wallpaper to system  (1/2)

Change-Id: I0eb1b5578b705c2ade4c0772fa86e09478b9f73e
Signed-off-by: Roman Birg <roman@cyngn.com>
Add wallpaper pickers to seperate package [1/2]

Currently wallpaper pickers were part of the various launchers
and we were relying on Trebuchet's to add code for including
wallpapers from themes.  If Trebuchet is removed then this
functionality is lost.  This package is already included in all
builds so making the picker available here removes the dependency
on a specific launcher.

Trebuchet still contains a picker which should probably be removed
and make use of this package instead.

Change-Id: Ie42ae0e01f951a8293d13d6c8a73fde0dea6682b