[jfx17u] Integrated: 8281711: Cherry-pick WebKit 613.1 stabilization fixes

[Kevin Rushforth]

On Thu, 24 Feb 2022 19:31:18 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

> Clean backport to `jfx17u`. I tested the backports of [JDK-8281711](https://bugs.openjdk.java.net/browse/JDK-8281711), [JDK-8282099](https://bugs.openjdk.java.net/browse/JDK-8282099), and [JDK-8281089](https://bugs.openjdk.java.net/browse/JDK-8281089) together in the `test-kcr-17.0.3` branch.

This pull request has now been integrated.

Changeset: f8332b5a
Author:    Kevin Rushforth <kcr at openjdk.org>
URL:       https://git.openjdk.java.net/jfx17u/commit/f8332b5aa34420c10b99d1123aa83858a8e5ce84
Stats:     1218 lines in 127 files changed: 767 ins; 169 del; 282 mod

8281711: Cherry-pick WebKit 613.1 stabilization fixes

Stabilization fixes from WebKitGTK 2.34.5

Backport-of: 418d3437923fed0a298c48b54214af069e3bb3bd

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PR: https://git.openjdk.java.net/jfx17u/pull/35