RFR: 8292609 : Cherry-pick WebKit 614.1 stabilization fixes

Fri Aug 26 11:58:45 UTC 2022

Stabilization fixes from WebKitGTK 2.36.7.
Verified drt and unit tests on Mac, Windows and Linux platforms.

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Commit messages:
 - Cherry-pick WebKit 614.1 stabilization fixes

Changes: https://git.openjdk.org/jfx/pull/885/files
 Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=885&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8292609
  Stats: 1228 lines in 111 files changed: 848 ins; 102 del; 278 mod
  Patch: https://git.openjdk.org/jfx/pull/885.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/885/head:pull/885

PR: https://git.openjdk.org/jfx/pull/885