[GTK] MouseEvent movementX/Y incorrect with USE_GTK4=OFF

[carlosgcampos]

763d3dd

[GTK] MouseEvent movementX/Y incorrect with USE_GTK4=OFF
https://bugs.webkit.org/show_bug.cgi?id=275148

Reviewed by Michael Catanzaro.

Fix the creation of MotionEvent when created with a widget and state.

* Source/WebKit/UIProcess/API/gtk/WebKitWebViewBase.cpp:
(MotionEvent::MotionEvent):
(MotionEvent::setState):

Canonical link: https://commits.webkit.org/280110@main

330dfd9

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

[webkit-early-warning-system]

EWS run on current version of this PR (hash 330dfd9)

Details

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

[GeorgesStavracas]

LGTM. While reviewing this I learned about C++ Delegating Constructors but I don't think they can be used in this situation.

[mcatanzaro]

And I learned that delegating constructors apparently do not work the way I had assumed they did. Learning is good!

[webkit-commit-queue]

Committed 280110@main (763d3dd): https://commits.webkit.org/280110@main

Reviewed commits have been landed. Closing PR #29892 and removing active labels.