Merge "libgui: Check slot received from IGBP in Surface" into lmp-dev am: 98e3c06010 am: 970bb51580 am: 78976cea8f am: 2fe15aa6f0 am: cce83f15e5
am: 9a44ee0742

Change-Id: I79f6a2eb14d624b153244788267a16c752927e33