hg: openjfx/8/controls/rt: revert computePrefW/H of TabPaneSkin to return W/H based on content instead of a constant.

[hang.vo at oracle.com]

Changeset: a2978f7aae56
Author:    psomashe
Date:      2013-06-04 23:14 -0700
URL:       http://hg.openjdk.java.net/openjfx/8/controls/rt/rev/a2978f7aae56

revert computePrefW/H of TabPaneSkin to return W/H based on content instead of a constant.

! javafx-ui-controls/src/com/sun/javafx/scene/control/skin/TabPaneSkin.java