RFR: 8185429: [macos] After the dialog is closed, there is no window become active. [v2]

[Alisen Chung]

> After a modal dialog is closed, its parent window should be pushed to the front and made key.

Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:

  replaced nativePushNSWindowToFront() with orderAboveSiblings()

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5884/files
  - new: https://git.openjdk.java.net/jdk/pull/5884/files/92f63610..001cacbd

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5884&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5884&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5884.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5884/head:pull/5884

PR: https://git.openjdk.java.net/jdk/pull/5884