RFR: 8340322: Update WebKit to 620.1

[Oliver Schmidtmer]

On Mon, 10 Feb 2025 15:27:49 GMT, Jay Bhaskar <jbhaskar at openjdk.org> wrote:

> Webkit JavaFx upgrade from 619.1 to 620.1 <br>
> Build is verified in mac , windows and linux. Sanity testing looks fine. No issues seen, except one observed CanvasPattern test where it works only on Linux but failed on Mac/Windows (WIP).
> Windows build is using clang-cl compiler because Webkit has dropped MSVC compiler support.

modules/javafx.web/src/main/native/Source/WTF/wtf/java/FileSystemJava.cpp line 1:

> 1: /*

I would recommend to add "fprintf(stderr, XXX NOT IMPLEMENTED\n");" outputs to the the four changed / new functions stubs, as for the older unimplemented methods. 
This would make issues as we had in [JDK-8337481](https://bugs.openjdk.org/browse/JDK-8337481) easier to track.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1703#discussion_r1951325661