RFR: 8298167: Opacity in WebView not working anymore [v2]

[Kevin Rushforth]

On Wed, 11 Jan 2023 14:58:07 GMT, Jay Bhaskar <jbhaskar at openjdk.org> wrote:

>> Roman Marchenko has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:
>> 
>>   Fixed the opacity issue
>
> The patch looks ok, as [GraphicsContextJava.h] needs to inherit methods from GraphicsContext.h  , the begin/endPlatformTransparencyLayers already modified in latest update. so it looks like there would not be conflict.

> @jaybhaskar Can you also take a look? This might cause a merge conflict with the in-progress WebKit 615.1 update, but since this is a very targeted patch, I expect it would be an easy conflict to resolve, if it does.

I did a quick test, and confirmed that this does fix the problem. I also confirmed that there will be no merge conflict with WebKit 615.1.

@wkia Would it be possible to provide a unit test that fails before and passes after this fix?

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PR: https://git.openjdk.org/jfx/pull/992