RFR: 8268849: Update to 612.1 version of WebKit [v2]

[Johan Vos]

On Tue, 6 Jul 2021 10:39:40 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

>> Update JavaFX WebKit to GTK WebKit 2.32 (612.1).
>> There are two separate commits:
>> 1. [commit](https://github.com/openjdk/jfx/commit/ed0baf5f23aed0d8aaa72645c8e03fde56d0f0cc) : includes only native changes
>> 2. [commit](https://github.com/openjdk/jfx/commit/b024c16551be7d929fa1d927d3be8f0fc75a64c3) : includes non native changes
>> 
>> This is change is targeted for JavaFX 18, shall be integrated after fork.
>
> Ambarish Rapte has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - remove unwanted file
>  - comment failing test code

Works with the required toolchains

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Marked as reviewed by jvos (Reviewer).

PR: https://git.openjdk.java.net/jfx/pull/560