This PR does two small improvements to `VirtualFlow`. Until now, the `VirtualFlow` sometimes called the `computeHeight` or `computeWidth` methods, although a fixed cell size is set and we therefore don't need to call those method (and never should do, as we may don't get the expected result and mix computed sizes with the fixed cell size).
Added tests that fail before and pass now. They check that the `computeHeight` or `computeWidth` (non vertical flow) are never called when a fixed cell size is set. ------------- Commit messages: - JDK-8309470: Potential performance improvements in VirtualFlow Changes: https://git.openjdk.org/jfx/pull/1150/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1150&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8309470 Stats: 126 lines in 2 files changed: 101 ins; 13 del; 12 mod Patch: https://git.openjdk.org/jfx/pull/1150.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1150/head:pull/1150 PR: https://git.openjdk.org/jfx/pull/1150
