[jfx17u] RFR: 8268718: [macos] Video stops, but audio continues to play when stopTime is reached

[Kevin Rushforth]

Clean backport to `jfx17u`. This has been tested along with other pending fixes in the `test-kcr-17.0.1` branch.

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Commit messages:
 - 8268718: [macos] Video stops, but audio continues to play when stopTime is reached

Changes: https://git.openjdk.java.net/jfx17u/pull/4/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx17u&pr=4&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8268718
  Stats: 5 lines in 1 file changed: 5 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx17u/pull/4.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx17u pull/4/head:pull/4

PR: https://git.openjdk.java.net/jfx17u/pull/4