On higher dpi settings, the size of the action bar and status bar decreases.
This scales them so that they will remain the same size regardless of the dpi setting.
96 dpi (100%):
144 dpi (150%) (before PR):
As you can see the size of the action and status bars has decreased leaving the white space in its place.
144 dpi (150%) (after PR):
This is how it looks after this commit. The status and action bars are now the same size as they were on 96dpi (100%).
On higher dpi settings, the size of the action bar and status bar decreases. This scales them so that they will remain the same size regardless of the dpi setting.
96 dpi (100%):
144 dpi (150%) (before PR): As you can see the size of the action and status bars has decreased leaving the white space in its place.
144 dpi (150%) (after PR): This is how it looks after this commit. The status and action bars are now the same size as they were on 96dpi (100%).