RFR: 8371163: Make GlyphView/TestGlyphBGHeight.java headless [v2]

[Prasanta Sadhukhan]

> Test is made headless

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Review fix

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28173/files
  - new: https://git.openjdk.org/jdk/pull/28173/files/31553875..2fd23125

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28173&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28173&range=00-01

  Stats: 35 lines in 1 file changed: 0 ins; 12 del; 23 mod
  Patch: https://git.openjdk.org/jdk/pull/28173.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28173/head:pull/28173

PR: https://git.openjdk.org/jdk/pull/28173