If Display ratio (Height/Width) is 1.7, the button which is generated...

If Display ratio (Height/Width) is 1.7, the button which is generated dynamically is longer and catches the input event.
The mockview’s onTouchEvent is not called and causes test failure.
We set the height of button as 1/3 of mockview’s Height to avoid to block the event delivery.

Change-Id: Icb97c775625bcd86df9a887bee4b84b073048806