Remove Quirk shouldDisableLazyImageLoading for Ikea.com

[karlcow]

8113b3e

Remove Quirk shouldDisableLazyImageLoading for Ikea.com
https://bugs.webkit.org/show_bug.cgi?id=257007
rdar://109547199

Reviewed by Chris Dumez.

Removes the lazy images loading necessary for Ikea. The Ikea Web
team has fixed their code and the images are now loading into
Safari without issues. This also re-enable the normal preference
setting for disabling/enabling Lazy Image loading.

* Source/WebCore/dom/Document.cpp:
(WebCore::Document::lazyImageLoadingEnabled const): Deleted.
* Source/WebCore/dom/Document.h:
* Source/WebCore/html/HTMLImageElement.idl:
* Source/WebCore/html/parser/HTMLPreloadScanner.cpp:
(WebCore::TokenPreloadScanner::StartTagScanner::processAttribute):
* Source/WebCore/loader/ImageLoader.cpp:
(WebCore::ImageLoader::updateFromElement):
* Source/WebCore/page/Quirks.cpp:
(WebCore::Quirks::shouldDisableLazyImageLoadingQuirk const): Deleted.
* Source/WebCore/page/Quirks.h:

Canonical link: https://commits.webkit.org/264260@main

4e2f952

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 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
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[webkit-early-warning-system]

EWS run on current version of this PR (hash 4e2f952)

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	✅ 🛠 wincairo
✅ 🧪 bindings	✅ 🛠 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
✅ 🛠 🧪 merge	✅ 🛠 watch
	✅ 🛠 watch-sim

[stwrt]

Just tested the site out and it works without the quirk.

[stwrt]

IKEA upgraded their Gatsby version to 5.7.0.

[stwrt]

Overall LGTM. Need someone else to approve.

[cdumez]

LGTM

[webkit-commit-queue]

Committed 264260@main (8113b3e): https://commits.webkit.org/264260@main

Reviewed commits have been landed. Closing PR #14058 and removing active labels.