RFR: 8158801: [TEST_BUG] Mixing tests fail because of focus workaround trick [v31]

[Khalid Boulanouare]

> Many Mixing tests failed because the work around click lands on the minimizing area in the window control and causes the tests to fail.
> 
> This fix changes the width of base frames which allows most of tests to pass.

Khalid Boulanouare has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 47 additional commits since the last revision:

 - Merge branch 'openjdk:master' into jdk-8158801
 - Merge branch 'openjdk:master' into jdk-8158801
 - Disposes frame at the end of testing.
 - Moves latch logic inside ancestor frame block
 - Merge branch 'openjdk:master' into jdk-8158801
 - Disposes frames after each AWT component test
 - Removes redundant code for centring frames
 - Merge branch 'openjdk:master' into jdk-8158801
 - Merge branch 'openjdk:master' into jdk-8158801
 - Centers missed frames in the middle of screen
 - ... and 37 more: https://git.openjdk.org/jdk/compare/99a2c001...54087fa9

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/25971/files
  - new: https://git.openjdk.org/jdk/pull/25971/files/a62416a9..54087fa9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25971&range=30
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25971&range=29-30

  Stats: 2394 lines in 186 files changed: 1658 ins; 190 del; 546 mod
  Patch: https://git.openjdk.org/jdk/pull/25971.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25971/head:pull/25971

PR: https://git.openjdk.org/jdk/pull/25971