b3c46a33c0
We call this._getChildrenMaxSize() from the allocate() vfunc of IconGridLayout. Since the function is quite expensive, it slows the layout process down a lot, so instead of re-calculating it on every relayout, cache the max size of children. This makes the average time spent in vfunc_allocate() of the iconGrid go down from 2.3 ms to 1.6 ms. Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1713>