GridView used to display days in months can be scrolled when there are more rows
than the space can contain. Usually this happens when a month spans over 6 rows. In this case, the position of the day in a month will not be the same as its corresponding view position in the grid view. This can cause:
1. Wrong day view being highlighted.
2. Crashes due to out-of-bound index. (The day position can be larger than view
counts due to invisible days.)
PiperOrigin-RevId: 379382943
