RFR: 8347937: Canvas pattern test fails and crashes on WebKit 620.1

[Sergey Nazarkin]

On Fri, 21 Mar 2025 08:17:39 GMT, Jay Bhaskar <jbhaskar at openjdk.org> wrote:

> Issue: 
> Ref: Webkit 619.1 javafx.web/src/main/native/Source/WebCore/platform/graphics/ImageSource.cpp refactoring in 620.1
> In the case of the canvas pattern using a transform property filled with an SVGMatrix()
> created by an SVG element, `frame.m_nativeImage->size()` calls `NativeImage::size()`
> from NativeImageJava.cpp. In this scenario, `*m_platformImage->getImage().get()` may be invalid,
> as the image decoder has already populated `frame.m_size` during image metadata caching.
> 
> Solution:
> To avoid potential invalid accesses and unintended size resets, only update `m_size`
> if the frame does not already have a valid native image.

I see CanvasTest failure. But I guess it is unrelated

CanvasTest > testCanvasPattern() FAILED
    org.opentest4j.AssertionFailedError: First rect top-left ==> expected: <255> but was: <0>

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PR Comment: https://git.openjdk.org/jfx/pull/1740#issuecomment-2743013599