[Tizen] Use Tizen application database to store application data

Crosswalk should use the Tizen platform's application database
to store application data, instead of its own. This reduces
duplication of information and allows webapps to be behave
more like native apps in the eyes of the system.

BUG=XWALK-2029
Hi Keneth, 
x_slp means_exe is a name of field in app_info.db

As I Know SLP means Samsung Linux Platform