Don't set extreme values of Integer to safe bounds

This is to prevent getting unexpected results while calculating the
width or height of the rectangle, due to the overflow.

This CL defines the borders of the window layout with large enough
integers, which are also the borders of the safe bounds.

Fix: 227276622
Test: atest ConfigurationScreenLayoutTest#testScreenLayout
Change-Id: Iee14e6de48f57be4999f64dbdce01815de88a9df