UI-Side Compositing : Text on a Button in PDF and inputted text appear upside down

[rr-codes]

9358d2a

UI-Side Compositing : Text on a Button in PDF and inputted text appear upside down
https://bugs.webkit.org/show_bug.cgi?id=255797
rdar://107127603

Reviewed by Megan Gardner.

With UI-side compositing, PDF annotations were rendered upside-down due to `isGeometryFlipped`
being `true` for their layers.

This PR fixes this by adopting a PDFKit delegate method on the PDF layer controller's delegate
to access each annotation's layers, and then flips them vertically with a transform to get them
to be the correct orientation.

* Source/WebKit/WebProcess/Plugins/PDF/PDFPlugin.mm:
(-[WKPDFLayerControllerDelegate initWithPDFPlugin:]):
(-[WKPDFLayerControllerDelegate pdfLayerController:didUpdateLayer:forAnnotation:]):
(WebKit::PDFPlugin::setView):

Canonical link: https://commits.webkit.org/263343@main

[webkit-early-warning-system]

EWS run on current version of this PR (hash c4a9af3)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
	✅ 🛠 ios-sim	✅ 🛠 mac-AS-debug	✅ 🧪 wpe-wk2
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🧪 api-mac	✅ 🛠 gtk
	✅ 🧪 ios-wk2-wpt	✅ 🧪 mac-wk1	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 mac-wk2	✅ 🧪 api-gtk
	✅ 🛠 tv	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2-stress
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[megangardner]

Any way to write a test for this?

[webkit-commit-queue]

Committed 263343@main (9358d2a): https://commits.webkit.org/263343@main

Reviewed commits have been landed. Closing PR #13041 and removing active labels.