RFR: 8293836: Rendering performance degradation at bottom of TableView with many rows [v2]

[Johan Vos]

> Only update the VirtualFlow parameters in case the size of a cell has changed.
> 
> The fixes for JDK-8298728 and JDK-8277785 introduced an unconditional recalculation in case the size of a cell is set. This recalculation is only needed in case the size of that specific cell has changed.
> Fix for JDK-8293836

Johan Vos has updated the pull request incrementally with one additional commit since the last revision:

  remove newline

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/1098/files
  - new: https://git.openjdk.org/jfx/pull/1098/files/a0f08e53..2e899493

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1098&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1098&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jfx/pull/1098.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1098/head:pull/1098

PR: https://git.openjdk.org/jfx/pull/1098