RFR: 8356982: Update WebKit to 622.1 [v2]

[Kevin Rushforth]

On Mon, 11 Aug 2025 14:57:00 GMT, Hima Bindu Meda <hmeda at openjdk.org> wrote:

>> This PR updates Webkit to v622.1. Verified sanity and build on Mac, Linux and windows platforms. No issue seen.
>
> Hima Bindu Meda has updated the pull request incrementally with one additional commit since the last revision:
> 
>   additional fixes for webkit

I left a couple questions about your most recent commit. Also, can you add a comment about removing the unused "skia" files (as we discussed offline)?

modules/javafx.web/src/main/native/Source/WebCore/Modules/compression/CompressionStreamEncoder.cpp line 81:

> 79: #if !PLATFORM(JAVA)
> 80:     return !m_zstream.getPlatformStream().avail_in && (!m_didFinish || (m_didFinish && result == Z_STREAM_END));
> 81: #endif

I presume this came from upstream code? Was it just missed in the earlier set of updates?

In any case, this is a no-op, since it is "ifdef"ed out for our build of WebKit.

modules/javafx.web/src/main/native/Source/WebCore/Modules/compression/CompressionStreamEncoder.cpp line 91:

> 89:     return result != Z_OK && result != Z_STREAM_END && result != Z_BUF_ERROR;
> 90: #endif
> 91:     return true;

How did this even compile previously? Is this file actually included in our build?

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PR Review: https://git.openjdk.org/jfx/pull/1865#pullrequestreview-3106412589
PR Review Comment: https://git.openjdk.org/jfx/pull/1865#discussion_r2267123640
PR Review Comment: https://git.openjdk.org/jfx/pull/1865#discussion_r2267125502