[jdk17u-dev] RFR: 8280991: [XWayland] No displayChanged event after setDisplayMode call

[Goetz Lindenmaier]

I backport this for parity with 17.0.16-oracle.

Resolved Copyright, ProblemList, probably clean anyways.

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Commit messages:
 - Backport 29de20dbc22e0b68698a1b9cb1241ae5861a6b9a

Changes: https://git.openjdk.org/jdk17u-dev/pull/3365/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3365&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8280991
  Stats: 88 lines in 4 files changed: 84 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3365.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3365/head:pull/3365

PR: https://git.openjdk.org/jdk17u-dev/pull/3365