Comment 4 for bug 833697

ok, linked branch has an approach i think should def work... featured tile width is derived from a global, so aaron your approach is maintained except we only use the calc'd req_width if it is larger than the current global featured_tile_width value

along the lines of:
global _featured_tile_width
_featured_tile_width = max(req_width, _featured_tile_width)

all featured tiles throughout software center will have the same width as a consequence of this change. Hope this is desirable.