[jdk11u-dev] RFR: 8249592: Robot.mouseMove moves cursor to incorrect location when display scale varies and Java runs in DPI Unaware mode

[Goetz Lindenmaier]

I backport this for parity with 11.0.16-oracle.

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Commit messages:
 - Backport 8aba4de98477a3bcfcde8db71e0d797965f774c7

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/937/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=937&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249592
  Stats: 26 lines in 1 file changed: 18 ins; 5 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/937.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/937/head:pull/937

PR: https://git.openjdk.java.net/jdk11u-dev/pull/937