8.0-controls-scrum-378: Textarea benchmarks are broken

Performance Control.TextArea benchmarks are broken starting from build 8.0-controls-scrum-378.
No scrolling is done on second and other iterations. Scrolling works fine only during first iterations.
The changes done in build 378 are:
    1. Fixed RT-28223: Fix controls heights to be consistent. reviewed by Jonathan and Rich. This includeds fixes to controls to utilize new API from RT-27762 also fixes for padding snapping to pixel in consitant way. (detail)
    2. Modena app, changed to Java project from FX project. Moved fonts to menu rather than button. (detail)


Steps to reproduce the issue:
> cd JFX_WS/tests/performance/Controls/
> ant
> java -Djavafx.animation.fullspeed=true
       -cp "JFX_HOME/rt/lib/ext/jfxrt.jar;./dist/Controls.jar;../FXBenchmark/dist/FXBenchmark.jar;../../../import/benchmarks-2.1.1/benchmarks-2.1.1.jar"
       jrockit.bm.Main controls.bm.TextAreaBenchmark -i 3 -line-len 255 -line-num 100 -mode V_SCROLL