[jdk21u-dev] RFR: 8309899: Rename PtrQueueSet::buffer_size()

[Daniel Hu]

temp

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Commit messages:
 - Backport 181845ae46157a9bb3bf8e2a328fa59eddc0273a

Changes: https://git.openjdk.org/jdk21u-dev/pull/1882/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1882&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8309899
  Stats: 68 lines in 14 files changed: 1 ins; 3 del; 64 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1882.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1882/head:pull/1882

PR: https://git.openjdk.org/jdk21u-dev/pull/1882