Fix GF-1788 universal search focus problem

The event pos coordinator should use pos of window to
replace the old scenePos. Now the universal search can get focus by
double click but not click.

Open-webOS-DCO-1.0-Signed-off-by: Yi Zheng <yi.zheng@palm.com>

Change-Id: Iafd69092cae61b5c17f55ece125fa3b7acc6da2d