Fix: Insertion handle can be moved just by tapping.

Horizontal poistion is passed to updatePosition() without
adding getHorizontalOffset(). The position is wrong for the
insertion handle; thus, the handle is moved just by tapping
on it.

Bug: 20923263
Change-Id: Ie867ebd9e6b682057b73373fefb7b2baf45caef9
1 file changed