RFR: 8338000: Remove GlassFullscreenWindow

[Kevin Rushforth]

On Sun, 17 Nov 2024 20:18:28 GMT, Martin Fox <mfox at openjdk.org> wrote:

> The GlassFullscreenWindow class hasn't been instantiated since applet support was removed (JDK-8201538). This PR removes the class and the one (unused) member variable of that type.

Nice cleanup.

I reviewed all of the code changes, and this all looks good. In addition to reviewing it, I instrumented the code to verify that `fullScreenWindow` is always null (it is). After applying your patch, I see no more references to the dead classes and the unused (always null) `fullScreenWindow` and `fsWindow` fields.

I fired off a headful test build on our macOS platforms and will approve it once it passes.

@beldenfox You will need to change the title of this PR to match the JBS title (I modified it slightly for consistency, but the mismatch was there before I did that).

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PR Comment: https://git.openjdk.org/jfx/pull/1641#issuecomment-2484259291