Sanity check IMemory access versus underlying mmap

Bug 26877992

Change-Id: Ibbf4b1061e4675e4e96bc944a865b53eaf6984fe

void HeapCache::binderDied(const wp<IBinder>& binder)
{
    free_heap(binder);
}

void HeapCache::binderDied(const wp<IBinder>& binder)
{
    free_heap(binder);
}
