[jfx18] RFR: 8278980: Update WebKit to 613.1

Wed Apr 13 13:09:38 UTC 2022

On Wed, 13 Apr 2022 12:35:18 GMT, Johan Vos <jvos at openjdk.org> wrote:

> Co-authored-by: Ajit Ghaisas <aghaisas at openjdk.org>
> Co-authored-by: Jay Bhaskar <jay.bhaskar at oracle.com>
> Co-authored-by: Kevin Rushforth <kcr at openjdk.org>
> Reviewed-by: kcr, jvos, aghaisas

Marked as reviewed by kcr (Lead).

I can confirm that this is a clean patch, even though Skara doesn't record it as clean -- see [SKARA-1332](https://bugs.openjdk.java.net/browse/SKARA-1332).

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PR: https://git.openjdk.java.net/jfx/pull/770