RFR: 8284654: Modal behavior returns to wrong stage [v3]

[Thiago Milczarek Sayao]

> When there's an APPLICATION_MODAL window, all other windows are disabled and re-enabled when the APPLICATION_MODAL window closes. This causes `requestToFront()` to be called on every window, and it does not guarantee order.
> 
> The fix also works for:
> https://bugs.openjdk.java.net/browse/JDK-8269429
> 
> But this one might need another fix:
> https://bugs.openjdk.java.net/browse/JDK-8240640

Thiago Milczarek Sayao has updated the pull request incrementally with one additional commit since the last revision:

  Revert "Set the focus on the latest window when re-enabling them"
  
  This reverts commit b024de586c187f9000f791dab99507a4979cc027.

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Changes:
  - all: https://git.openjdk.java.net/jfx/pull/784/files
  - new: https://git.openjdk.java.net/jfx/pull/784/files/b024de58..a6cad45b

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jfx&pr=784&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jfx&pr=784&range=01-02

  Stats: 8 lines in 2 files changed: 0 ins; 8 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/784.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/784/head:pull/784

PR: https://git.openjdk.java.net/jfx/pull/784