RFR: 8159451: [TEST_BUG] java/awt/Mixing/AWT_Mixing/JMenuBarOverlapping.java [v2]

[Alisen Chung]

> Added more time to test, removed pixel check during EmbeddedFrame test from OverlappingTestBase.

Alisen Chung has updated the pull request incrementally with two additional commits since the last revision:

 - reformat pixel check
 - removed debugging statement

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6177/files
  - new: https://git.openjdk.java.net/jdk/pull/6177/files/bbf1377d..f317c9df

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6177&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6177&range=00-01

  Stats: 4 lines in 2 files changed: 1 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6177.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6177/head:pull/6177

PR: https://git.openjdk.java.net/jdk/pull/6177