Making window borders visible in WIN32
This is a follow up to c/175821:
To make the emulator title bar visible when re-positioning large
windows in MS Windows, one has to take into consideration the
windows borders. This patch extends the skin winsys API to
query for emulator window border sizes and set window
position properly.
This patch solves the title bar visibility problem (issue 178344)
for SDL windows in MS Windows. It does not apply on other
platforms. QT stubs have been added but this issue likely
does not apply in QT windows.
Change-Id: I7dc8d98d2572a45fe952cd075333ee3fd4885369
