RFR: 8282099: Cherry-pick WebKit 613.1 stabilization fixes (2)

[Johan Vos]

On Tue, 22 Feb 2022 17:15:19 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

> Include additional stabilization fixes of WebKit 613.1
> Sanity testing did not show any concerns.

Ok on mac/linux/win x86_64 and on linux aarch64

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Marked as reviewed by jvos (Reviewer).

PR: https://git.openjdk.java.net/jfx/pull/740