RFR: JDK-8315569: Tests for the contract of SkinBase.layoutChildren(..) [v3]

[Andy Goryachev]

On Fri, 22 Sep 2023 10:11:12 GMT, Marius Hanl <mhanl at openjdk.org> wrote:

>> This PR adds a test that verifies the `SkinBase.layoutChildren(..)` method with different scales.
>> While not explicitly documented, this method will receive the snapped and correctly calculated x, y, width and height values, so that children of the Control can be layouted correctly without requiring to do many more calculations regarding padding.
>
> Marius Hanl has updated the pull request incrementally with one additional commit since the last revision:
> 
>   JDK-8315569: Improve test name and add 2.25 scale

🕶 looking good

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Marked as reviewed by angorya (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1229#pullrequestreview-1675113019