CanvasBase constructs the backing store as DisplayList::ImageBuffer in some cases - DisplayListDrawingEnabled is about render layer backing stores being display listed - Context2D cannot support display lists, as putImageData is not supported and getImageData would need to flatten the list - CanvasRenderingContex2DBase already has a setting to record display lists for CustomPaintCanvas
<rdar://problem/115116912>
Pull request: https://github.com/WebKit/WebKit/pull/17545
Committed 267772@main (f64219027be9): <https://commits.webkit.org/267772@main> Reviewed commits have been landed. Closing PR #17545 and removing active labels.