Launcher: It will pop shortcut added when the screen no room

Contacts show a sucesssful toast directly after send broadcast to
laucher evenwhen there is no room in launcher,
Laucher has no response to Contacts, and show the error toast
when there is no room.

When the shortcut put successful, Launcher broadcast an intent
with packagename, so Contacts show the sucessful toast only when
receive this intent.

CRs-Fixed: BZ707

Change-Id: I478d1dd25c494b3f0c2d1ac9711e5b56dcd8610f