[jdk17u-dev] RFR: 8283214: [macos] Screen magnifier does not show the magnified text for JComboBox

[Goetz Lindenmaier]

I backport this to improve accessability.

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Commit messages:
 - Backport de51aa19d6a8cbd3b83bf469cb89da16f4b6f498

Changes: https://git.openjdk.org/jdk17u-dev/pull/3012/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3012&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8283214
  Stats: 178 lines in 4 files changed: 167 ins; 2 del; 9 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3012.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3012/head:pull/3012

PR: https://git.openjdk.org/jdk17u-dev/pull/3012