Fix requestLayout-during-layout problems

An earlier fix to allow requestLayout() to be called during layout
didn't handle some of the requests properly, leaving some nodes
stranded with layout requests that didn't propagate all the way
up the hierarchy. The fix is to do, on the second layout pass, exactly
what we do in a normal layout pass: run measure, then layout.

Issue #7657033 Checkboxes not being updated immediately in Settings

Change-Id: I90be3992d3441e8f43629d26c8386c81a7c31482