RFR: JDK-8371364 : Refactor javax/swing/JFileChooser/FileSizeCheck.java to use Util.findComponent()

[Harshitha Onkar]

FileSizeCheck.java test changes related to addition of new method to Util - https://github.com/openjdk/jdk/pull/27944.

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Commit messages:
 - test update

Changes: https://git.openjdk.org/jdk/pull/28168/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28168&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8371364
  Stats: 22 lines in 1 file changed: 2 ins; 17 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/28168.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28168/head:pull/28168

PR: https://git.openjdk.org/jdk/pull/28168