Fixed when user tap on linkable contents, somtimes focus ring is not shown.

Fixed when user tap on linkable contents, somtimes focus ring is not shown.

[Title] Fixed when user tap on linkable contents, somtimes focus ring is not shown.
[Issue#] P130508-1455
[Problem] When user tap on linkable contents, somtimes focus ring is not shown
[Cause] 1. When user tap quickly, hide() function was called before show() function is called by timer for showing focus ring.
           - timing issue
        2. When user tap any point that is not linkable contents around linkable contents,
           tap operation is worked by touch adjust feature and focus ring is not shown.
[Solution] 1. Added routine to call hide() function by timer.
           2. Added touch adjust feature to routine for getting focus ring rect.

Change-Id: I56263a00a5e1f3a42cfb7522a1541bb623066005