[canvaskit] Use ImageFilter.filterBounds to adjust ImageFilter paintbounds #130453
Description
Is there an existing issue for this?
- I have searched the existing issues
- I have read the guide to filing a bug
Use case
The CanvasKit backend in Flutter Web calculates rough paint bounds when rendering. However, for ImageFilters the paint bounds are inaccurate because they do not reflect how the image filter changes the bounds of the content it filters.
Proposal
Use ImageFilter.filterBounds (or equivalent API) when it is made available in CanvasKit (potential PR https://skia-review.googlesource.com/c/skia/+/721299)