-> We cache RemoteViews which populate the AdapterViews, but only
up to a total memory amount of 2MB. The remainder of the cache
is pruned out. If _every_ item is greater than 2MB, we were failing
to prune the last item, leaving the framework in a loop on a bg
thread, but holding a lock required by the main thread.
Change-Id: I0574a25a59ebec6586ae223fff6605c0fee953c3