[jdk21u-dev] RFR: 8347373: HTTP/2 flow control checks may count unprocessed data twice

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle.

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Commit messages:
 - Backport 06126361db1edb1d4c181a82952c1ac133a839f9

Changes: https://git.openjdk.org/jdk21u-dev/pull/1703/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1703&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8347373
  Stats: 116 lines in 5 files changed: 49 ins; 4 del; 63 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1703.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1703/head:pull/1703

PR: https://git.openjdk.org/jdk21u-dev/pull/1703