FW_Base - Do not launch Floating Window when on default launcher

We only do this when user is on the default launcher
because if the user was on a non-default launcher,
he/she must have been there for some purpose and we
do not want to throw him/her back to the default
launcher incase he/she exits the app with HOME button.

Signed-off-by: STELIX <ssspinni@gmail.com>

Change-Id: I9546af57057a9a7f2d3cea5360a57753fcd19099