Handle <input type=checkbox switch> disabled styling as part of the p…

…ainting code

https://bugs.webkit.org/show_bug.cgi?id=269378
rdar://122956268

Reviewed by Aditya Keerthi.

Using opacity creates a stacking context which is not desirable.

* LayoutTests/platform/ios-wk2/TestExpectations:
* Source/WebCore/rendering/ios/RenderThemeIOS.mm:
(WebCore::RenderThemeIOS::adjustSwitchStyle const):

Canonical link: https://commits.webkit.org/275002@main

LayoutTests/platform/ios-wk2/TestExpectations

@@ -2395,8 +2395,6 @@ webkit.org/b/269116 imported/w3c/web-platform-tests/css/css-flexbox/negative-ove
 
 webkit.org/b/269321 webgl/1.0.3/conformance/uniforms/out-of-bounds-uniform-array-access.html [ Timeout ]
 
-webkit.org/b/269378 [ Debug ] fast/forms/switch/click-disabled.html [ Skip ]
-
 webkit.org/b/269483 [ Debug ] http/wpt/webcodecs/h264-encoder-default-config.https.any.worker.html [ Skip ]
 
 # webkit.org/b/123266095  (REGRESSION (274957@main) [ iOS Debug ] 2x imported/w3c/web-platform-tests/css/css-view-transitions tests are constant crash)

Source/WebCore/rendering/ios/RenderThemeIOS.mm

@@ -721,7 +721,7 @@ static bool renderThemePaintSwitchTrack(OptionSet<ControlStyle::State>, const Re
 }
 #endif
 
-void RenderThemeIOS::adjustSwitchStyle(RenderStyle& style, const Element* element) const
+void RenderThemeIOS::adjustSwitchStyle(RenderStyle& style, const Element*) const
 {
     // FIXME: Deduplicate sizing with the generic code somehow.
     if (style.width().isAuto() || style.height().isAuto()) {
@@ -733,9 +733,6 @@ static bool renderThemePaintSwitchTrack(OptionSet<ControlStyle::State>, const Re
 
     if (style.outlineStyleIsAuto() == OutlineIsAuto::On)
         style.setOutlineStyle(BorderStyle::None);
-
-    if (element->isDisabledFormControl())
-        style.setOpacity(.4f);
 }
 
 bool RenderThemeIOS::paintSwitchThumb(const RenderObject& renderer, const PaintInfo& paintInfo, const FloatRect& rect)