Bottom component click scroll up the parent panel in a window (#12943)

Due to old fix for (#11994) the v-scrollable div of the window would
expand to 110% of its size then immediately back to the original size.
The first action, expanding the v-scrollable to 110% would decrease
the scrollTop value of our panel, while increasing its height. When
the revert back action would set the v-scrollable to its own size,
the panel's scrollTop would remain decreased, causing the scroll bar
to move up, hiding the ~10% at the bottom.

Fixed by calling Util.runWebkitOverflowAutoFix(); instead of changing
the height.

Change-Id: I79eafd1f9500c2e4c10dadbfc7100608c0732e04